Estimate a 15% tip on a dinner bill of $38.65 by first rounding the bill amount to the nearest ten dollars.

$5.81

Step-by-step explanation:

First, we round off the dinner bill of $38.65 to the nearest ten dollars, since 0.65 is greater than 0.5 benchmark for approximation, we round up. Therefore, 38.65 to the nearest tenth means we remove the last digit of the decimal= $38.7

15% tip on a dinner bill of $38.7 =

15/100 × 38.7

0.15 x 38.7= $5.805

i believe the answer is the polygon, heptagon.

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.