Isobel and marnie volunteer at a daycare center Isobel works 3 hours for every 2 hours marine works. if the two girls together work 20 hours on month, how many hours does Isobel work?

4 % of blank days is 56 days

Paulo uses an instrument called a densitometer to check that he has the correct ink colour. For this print job the acceptable range for the reading on the densitometer is 1.8 ± 10%. What is the acceptable range for the densitometer reading?

Simplify the expression8 (5 plus w)

Using the least number of coins how many quarters, dimes, nickels, and pennies to make $1.74

At first, Ben had $90 and Chandra had $48. each bought a shirt at the same price. the amounts of money Ben and chandra had left were in the ratio 4:1. how much did the shirt cost?

A carton can hold 1000 unit cubes that measure 1" x 1" x 1" what are the dimensions of the carton using unit cubes

Drag the correct symbol into the box to compare the expressions. 8+7-22 3² + 2 ≠ =

ling gave some of her blankets to charity, decreasing her total number of blankets by 9. After she gave her blankets away she had 11 left

If a certain cannon is fired from a height of 9.8 meters above the ground, at a certain angle, the height of the cannonball above the ground, h, in meters, at time, t, in seconds, is found by the function h (t) = - 4.9t² + 30.5t + 9.8.

What are the first ten perfect squares and perfect cubes