Write p-20=-30 as an addition problem

What is greater one inch or one centimeter

Factory requires 42 machines to produce some articles in 63 days. How many machines will be required to produce same number of articles in 54 days

Sadie has $1 worth of nickels and dimes. She has twice as many nickels as dimes. Write a system of equations that could be used to determine the number of nickels and the number of dimes that Sadie has.

One eight the sum of 23 and 17

Find the GCF of the following literal terms. m^7 n^4 p^3 and mn^12 p^5

1. Find the value of y for which the value of 8y+3 is 7 more than the value of 6y 2. 1.4a - (1.25-0.8a) = 1.75 - (0.3a-2)

Convert the mass 21mg=___g

What is the largest rational number that can be formed by using 2 of the numbers listed in the form of p/q 371, 271, 792, 793, 844, 514

A what is formed by two number lines that intersect at a right angle?

In a group of 60 students, 21 take math, 20 take psychologies, and 8 take both math and psychology. If one student is selected at random, find the probability that student takes math or psychology.