3 cent united states

The United States letter rates per oz have been increasing by 10 cents in 10 years from 1970. The price of letter per oz in year 1980 was 40 cents. Predict the letter rates in the year 2010. => 70 cents or 80 cents or 75 cents or..

The United States postage rates per oz have been increasing by 10 cents in 10 years from 1970. The price of letter per 1 oz in year 1980 was 30 cents. Write a linear model for the letter rates r over the years t . => r = t + 20 or r = - t - 20 or r = t - 20 o..

The postal rates in United States have increased by 10 cents in 10 years from 1970. If the rate per ounce in year 1980 was 30 cents, then write the equation of the model in point-slope form. At this rate predict the postal rates in the year 2010. [Let r repre..

In the SI system of units, under NTP conditions, P = 101325 N m - 2 T = 273.15 K V = 22.414x10 - 3 m 3 Therefore,..

BF 3 and BCl 3 are gases; BBr 3 is volatile liquid and BI 3 is a soli..

Lanthanides exhibit different oxidation states like +2, +3 and +4. Among these +3 is the most stable oxidation state. The elements that attain stable electronic configuration by losing 2 or 4 electrons exhibit +2 and +4 oxidation states. Example: E..

The atoms of these elements have three valence electrons, two in s-subshell and one in the p-subshell (ns 2 np 1 ). Therefore, all these elements can show maximum of +3 oxidation state. The common oxidation states, observed for group 13 elements are +3 and ..

Halogens have only one electron less than the next noble gas. Therefore, they can get the noble gas configuration either by gaining one electron to form uninegative ion, X - , or by sharing electrons with other atoms. Thus, they show an oxidation of state of l or + 1. Since fluorine is th..

All the elements of this group have ns 2 np 4 configuration in their outermost shell. Therefore, the atoms of these elements try to gain or share two electrons to achieve noble gas configuration. Since oxygen has a very high value of electronegativity, it tends to achieve noble gas configuration pr..

The circle graph represents the percentage of private schools in the United States which collect annual tuition fee. Find the fraction of the schools with an annual tuition fee of $1501 to $2500. => 3 15 or 13 20 or 1 20 or 3 20..