40 because 15×4 is 60 and there is 60 minutes in an hour
$8.25x2=$16.50
$5x2=$10
$10+$16.50=$26.50
2x$20=$40
$40-$26.50=$13.50
ANSWER: y=10.5
HOW TO SOLVE:
set 3/2 equal to x/7 and then solve for x. To do that, multiply 7x3 to get 21. Then divide 21 by 2 to get the answer.
Answer:
-8y^7 - 5y^6 + 9y^5 + 3y^4 - 4y^3
Step-by-step explanation:
Please be sure to use " ^ " to indicate exponentiation. Then,
your 9y5−4y3−8y7−5y6+3y4 becomes 9y^5 - 4y^3 - 8y^7 - 5y^6 + 3y^4.
We must now write that in descending order by powers of y:
-8y^7 - 5y^6 + 9y^5 + 3y^4 - 4y^3
