Answer:
x=20
Step-by-step explanation:
2(x+10)=60
distribute 2 by multiplying numbers in parenthesis
2x+20=60
subtract 20 from both sides
2x=40
divide both sides by 2
----------
x=20
----------
A 1:12 is the answer for this question
B. 46 feet because 132/12=11 and 12+12+11+11=46
Answer:
$172.80
Step-by-step explanation:
$160.00 x 1.08=$172.80
Since there are 21 questions and one is extra credit, the fraction is 21/20. Divide it to get 1.05. In percent, this is 105%. Hope this helps!