Answer:
7a+2a=9a
Step-by-step explanation:
You distribute the a to each of the numbers in the parenthesis. Which means that you multiply. You should be left with a 7a+2a. Then since 7+2=9, your answer is 9a. So answer 1 is correct because they do these exact steps.
See the attached picture:
Hello,
Perimeter is a function of the number of hexagons.
Answer:
58×.20=11.60 58.00+11.60= 69.60 your total cost is 69.60 to leave your tip on top of the bill
Step-by-step explanation:
any time you want a percentage of a number you take your number in this case 58.00 times whatever percentage in this case 20% so 58×.20 =11.60 then you take your total plus the amount you come up with for the tip 58.00+11.60=69.60
