Which of the following are like terms in this expression? 12a-7+7a+12b. A. 7 and 7a. B. 12 and 12a. C. - 7and 12b. D. 7a and 12a.

The probability that a car has a certain factory defect is 8/25. The probability that a car has a certain factory defect and needs an oil change is 7/50.

A doctor is examining three patients. Which sysmptoms do all three patients have in common? A) {headaches, hair loss, congestion} B) {cold sweats, congestion, memory loss} C) {spasms, memory loss, appetite} D) {fever, joint pain, tiredness}

A rectangular room measures 12 feet by 10 feet. How many square yards of carpet are needed? A. 13 1/3 B. 22 C. 44 D. 120

9. Mr. Paul pays the parking bill before tax at a cost of $33.20. The parking tax rate is 2%. Mr. Paul decides to leave a 5% tip for the parking guard based on the pre-tax amount. How much will the total bill be?8. Lilly paid $19.

What is the mean? 69 71 85 96 93 78 89

Solve for y 2 (y+3) = 18

Which equation shows direct variation? A y = 2x B y = x+2 C y = 2x + 2

John is 10 cm taller than Peter. Peter is h cm tall. Which of these is John's height? A) 10h B) 10 ⎼ h C) h ⎼10 D) h+10

Monique buys a $4,700 air conditioning system using an installment plan that requires 15% down. How much is the down payment?

a furniture shop refinshes cabinets. employees use one of two methods to refinish each cabinet. method 1 takes 1 hour and the material costs $6. method 2 takes 1.5 hours and the material costs $4.