Answer:
20
Step-by-step explanation:
1/2(a+b)=180
1/2(6+12)=18
1/2(18)=180
9/9=180/9
=20
Hopefully this helps you !
Answer:
B
Step-by-step explanation:
just multiply 8.50 times 4 and all the numbers in the problem
Answer:
480
Step-by-step explanation:
On Thursday there were 400 customers
1/5 of 400 =80
Increase Thursday's amount by 80
400+80 = 480
Friday has 480
55/8 and in the decimal form it's 6.875