Answer:
$21.60
Step-by-step explanation:
240 x .09 = 21.60
Answer:

Step-by-step explanation:

Second equation times 3:

1st equation minus equation above:

Insert to equation:

Answer:
C
Step-by-step explanation:
Step 1: Translate word to math
"Five" = 5
"times" means multiplication
"a number" = <em>n</em>
"plus" means addition
"3" = 3
"is" means equal
"12" = 12
Step 2: Set up equation (combine)
5n + 3 = 12
12% of 120 is 14.4
Change the percentage into a decimal by dividing over 100:
12 / 100 = 0.12
Multiply:
0.12 × 120 = 14.4
0.000576 is the right awnser