Answer:
1.5 hours per lawn
Step-by-step explanation:
Take the hours and divide by the number of lawns
9 hours / 6 lawns
Answer: You could use really any but i would probably do division or subtraction
22
if a=15
then, 2(a-5)+2= 2(15-5)+2 = 2(10)+2= 20+2=22