Estimate a 15% tip on a dinner bill of $79.42 by first rounding the bill amount to the nearest ten dollars.

$12 tip

Step-by-step explanation:

For this problem let's first round our bill amount to the nearest ten dollars.  So $79.42 becomes $80.00.  From here we will simply need to find 15% of $80.00 which can be found simply through multiplication as follows:

$80.00 * 0.15 = ?

$80.00 * 0.15 = 12

So, we can say the estimated 15% tip for the bill is $12.

Cheers.

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58

cool? what is the actuall ?

step-by-step explanation: