Answer:
might be wrong..but i think its all real numbers
Answer:

Step-by-step explanation:
im pretty sure its this smack me if im wrong
D is your answer if you times 8 and 2 together to get your A& B
Let's solve your equation step-by-step.
x+78=90
Step 1: Subtract 78 from both sides.
x+78−78=90−78
x=12
Please put brainliest!
Answer = 5 problems per minute
Because you do the number of problems divided by the minutes eg 35/7 = 5