Answer:
Let 
Solution: 
Step-by-step explanation:
See attached for step-by-step
Answer:
13*1=13
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
If he makes 70% then 70% as a decimal would be 0.700 which is B
Answer:
12.8 x 32 = 409.6
Step-by-step explanation: Please brainliest if correct!
Answer:
x + x = 2x
y * y = y^2
Step-by-step explanation:
Look on google