3,7,11,15 ... what's the recursive formula?

Alonzo drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 10 hours. When Alonzo drove home, there was no traffic and the trip only took 7 hours.

Suppose we want to choose 3 letters, without replacement, from the 4 letters A, B, C, and D. (a) How many ways can this be done, if the order of the choices matters? (b) How many ways can this be done, if the order of the choices does not matter?

Alex bought 2 chocolate chunk cookies at 59 cents each and a peanut butter brownie for 79 cents. How much did he spend?

4. For each equation, determine if = -2 is a solution. Explain or show your reasoning. a) 10 = 2 (x-9) b) 3 (x+4) = 2 (x+3) + 4

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20.

Mario brought a 1 gallon can of paint to paint his room. He used 0.5 gal for the fist coat and 0.4 gal for the second coat. How much paint did he have left

What would be the answer to " round 6.125 to the nearest tenth"?

Find the missig addend 82 + 41

Rename 3/4 and 2/5 using 20 as the comm; on denominator

Find the 88th term of the arithmetic sequence 26, 28, 30, ...