Answer: 9/4 hours or 2.25 hours
Step-by-step explanation:
Sally paints 1/9 an hour and Steve paints 1/3 an hour both of them adding is 4/9 and 4/9 times 9/4=1 so it is 2.25 hours
Answer:
D. 0
plug in the values then solve 2^2=4 3-3=0 4×0=0
35
= 32+20-21
= 52-21
= 31
the answer is 32.........