Work out the value of 4 (2x+3y) when x=8 and y=-3

Jim is 5 years older than Cindy. 4 years ago, the sum of their ages was 21. Find each of their ages now.

Whats the dervative of 4?

What is the solution set for the quadratic equation x^+6x=-5

Find the difference 6-3 2/5

At noon on tuesday in Chicago the temperature in degrees Fahrenheit was - 2 Fahrenheit at noon on Wednesday the temperature was 8 degrees higher what was the temperature at noon on Wednesday

You select a card at random from the cards that make up the word replacement without replacing the card, you choose a second card. find the probability of choosing a vowel.

jake hase a mac 11 and want to go on a shooting with 8 magazines and 25 bullets in each magazine, how many bullets are in the mac 11? and how many people can he end if he missed 90 shots because he is a mobile kid?

Trevor has $8 in savings and adds $1 each week. Aretha has $12 in savings and adds $3 each week. After how many weeks will Aretha's account have twice as much as Trevor's account?

What is the interest earned on $400 invested at the rate of 6% for one year?

Which ordered pair is a solution of the equation? A - Only (4,-1) B - Only (5,2) C - Both (4,-1) and (5,2) D - Neither