Answer:
5.21 or 0.19186046
Step-by-step explanation:
$1499 is the answer you multiply 100 by 15 then 100 by 29.99 and get 2999 and 1500. You subtract them together 2999-1500 to get 1499
so twice as much is 2 times x and she did 10 more than that quantity.
10 + 2x