The sum of 3 numbers is - 4. The second number decreased by the third is equal to the first. The sum of the first and second numbers is - 5. Write the system of equations and find the numbers.

Sales tax in one state is 9%. What is the amount of tax on a $30.95 purchase?

3. Methane (CH4), and oxygen (O2) combust to form carbon dioxide (CO2) and water (H2O) You have 8 g of methane and excess oxygen.

Simplify 6x 6 5x - 8. 11x - 2 11x 2 9x user: simplify 9 - {x - (7 x) }. 16 - 2x 2 - 2x 16 2x 2

85 divided by 3.5 i need to know

In one day's work at the nursery, sale and mary together potted 74 plants. If dale planted 48 of those plants how many did mary plant.

Your neighbors needs to put a fence around her front yard and a separate fence around her back yard her front yard is 65 feet long and 45 feet wide her back yard is 35 feet long by 45 feet wide how much fencing should she buy the fence is not

The ratio of boys to girls in a group is 7:1. If there are 42 more boys than girls, work out how many girls there are.

Two insureds own delivery vans. Insured A had two vans in year 1 and one claim, two vans in year 2 and one claim, and one van in year 3 with no claims.

Solve for y xy+p=5 y=5-p-x y = (5-p) / x y=5-px

This year, druehl, inc., will produce 57 comma 60057,600 hot water heaters at its plant in delaware, in order to meet expected global demand. to accomplish this, each laborer at the plant will work 200200 hours per month.