12×12×12×12×12 is equivalent to 12^5 (a^b means a is to be written down B times all being multiplied.)
Answer:
I think the answer is right.isn't The rectangle width 8 and length 11 inches
$12.79+$3.39=$16.18
$16.18+7.75% tax is $1.253
Multiply the constants. Multiply the variables according to the rules of exponents.