If 8a-4b=20 and 4a-8b=4, then what is the value of a-b?

Write the fraction 1 8 as a percent round to the nearest hundredth of a percent where necessary

How do I find square roots without a calculator?

What is 3 1/6 + 8 2/9 - 1 1/2?

A sprout in Jessie's garden 26/5 cm tall and is growing 13/10 cm each week. Write and solve an equation in order to determine how many weeks it will take for the plant to be 13cm tall

What is the simplified form of 8192/38220?

one side of a triangle is 6 meters more than twice the shortest side. the third side is 9 meters more than the shortest side. the perimeter is 25 meters find all three sides

Halfway through a bus route, 23 students have been dropped off and 48 students remain on the bus. write an equation to determine whether there are 61 or 71 students on the bus at the beginning of the route.

In January 2017, Yucca Corporation purchased a mineral mine for $6,400,000 with removable ore estimated by geological surveys at 2,000,000 tons. The property has an estimated value of $500,000 after the ore has been extracted.

What is 5 8/9 - 3 1/6

What 2 integers is - 3 inbetween?