Explain 81-16 in mental math

Evaluate 7c4 a. 6 b. 1 c. 35 d. 840

A mechanic charges $25 per hour and $40 for each hour of overtime. For a job, the mechanic works 5 regular hours, an unknown amount of overtime hours, and charges $200 for new parts. The amount of the bill for the job is $525.

Which sentence best describes the independent and dependent variables in the following problem? The movie house charges $7 for the large popcorn and $2.50 for any additional popcorn that you order. A.

A man sells a sofa for rs 3210 making a profit of 7% what would have been his profit percent if he had sold it for rs 3360?

Solve for x 2x^2/3=dg

Eli had $10 but he lost some of it. He mom doubled the money he had left. Eli wrote the expression 2 (10-k) how much money he has now, where k is the amount of money he lost.

Find the square number 7, 12, 20, 25, 27

Determine all of the positive values of k for which x2+6x+k

Lloyd's account has a balance of - $53.50. If he owes the bank more than $40, his account gets closed. Which of the following is true about Lloyd's account?

What is 7 2/5 x 6 1/4