Answer:
D.$80
Step-by-step explanation:
$5.26 x 15.5= $81.53
The closest amount to $81.53 is D.$80
cosC = BC/AC
21
Of means multiply and since we want an estimate we can round 72 to 70
30% * 70
.30 * 70
add 36 and 4 and multiply that by 6