Answer:
x= -6
Step-by-step explanation:
Answer: you multiply the 2 numbers and divide it by half then your answer is the easy way to do it.
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
if 3x3 is 9 and 4x3 is 12 then 5x3 is 15
Answer: 28/r+4
Step-by-step explanation: Divide each term by r + 4 and simplify