In order to do this you have to substitute b with 9 and get 3a+9=54, now subtract 9 from both sides to leave a by itself and get 3a=45, now divide 3 in both sides to leave a by itself and get a=15
Hope this helps
$.75 bc 15 x 4 is 75 so that would make 75¢ or $.75
411/8! hope this helps you!
Answer:
468.75 Cubic meters
Step-by-step explanation:
15 x 12.5 x 2.5 = volume
187.5 x 2.5 = volume
468.75 = volume
PEMDAS
Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.