Subtract the values using elimination method

-9a-3b-39

4a+2b-4

Constance is saving money to buy a new bicycle that costs 195.75. She already 40 saved and plans to save 8 each week. How many weeks will take her to save enough money to purchase the bicycle?

You are in charge of advertising for the drama club's next performance. You can make two signs from a poster board that is 36 inches long and 24 inches wide. Each poster board costs $0.75.

What is the height of a cone whose radius is 3 cm and volume is 900 cm3?

Christina has a garden with 50 flowers in it. The ratios of roses to daisies is 1:4. How many roses does he have? How many daisies does he have?

George tells you that when variables are in the denominator, the equation four over five plus three over x equals one over two becomes unsolvable. George explains, "There is a value for x that makes the denominator zero, and you can't divide by zero.

What is the length of the hypotenuse of the triangle? Triangle A B C. Side A C is 7 feet and side C B is 4 feet. Hypotenuse A B is unknown. StartRoot 22 EndRoot ft StartRoot 33 EndRoot ft StartRoot 57 EndRoot ft StartRoot 65 EndRoot ft

What is the total after a 10% discount of 346.10

At Valencia College are male students more likely to be smokers than female students? a. Testing a claim about a single population proportion. b. Testing a claim about a single population mean. c.

a shopkeeper bought two watches for rs 400. he sold them to gain 5% profit on one and another at 5% loss on other. calculate his final loss or profit percent. if the sp of both watches are same

The sum of twice a number and 5 is at most 15. what are the possible values for the number