How do i solve this math problem step by step (-x/2-7=9) using 2-step equations?

Which answer explains why the sum of 12+12 is an even number A. Any number plus 12 is even. B. Both addends are equal. C. Any number greater than 12 is even. D. 12+12 is equal to an odd number

Which of the following numerical expressions may represent the probability of a simple event? a) 1/2 b) 1/2 + 1/6 c) 1/6 + 1/6 d) 1/2 * 1/6

Robin needed three and two thirds feet of thread to finsh a pillow she was making if she has two times as much thread a she needs what is the lenght of the thread that she has

10 + 10 + 10 - x = 71

Use elimination to solve the system of equations 2+y=10 and 3x + 2y = 24

Trisha is selling lemonade at a fundraiser she bought 2 bag of cups each bag contained 90 cups and cost 3.60.

Consider to circular swimming pools. Pool A has a radius of 12 feet and Pool B has a diameter of 7.5 meters which pool has a greater circumference how much greater justify your answers

The sum of one fifth of a number and three is equal to half of the number. what is the number? A. 5. B. 10. C. 15 D. 20

In a large city, taxicabs charge $1.00 for the first 1:5 mile and $0.36 for each additional 1:5 mile. Frank has only 9.50. What is the maximum distance he can travel (not including a tip for the cabbie) ?

5 (-3x4) + 7 (-3x-4) - 10 (-4) + 12 equal to 5 (-12) + 7 (12) - 10 (4) + 12