Estimate a 20% tip on a dinner bill of \$173.26 by first rounding the bill amount to the nearest ten dollars .

$34.6

Step-by-step explanation:

The question is 20% tip of $173.26 dinner bill.

First we round to the nearest ten dollars means round off to the nearest tenth

Since 0.26 is not up to 0.5, we round down and the value becomes $173

Next, 20% of $173 means 20/100 × 173

=0.2 × $173 = $34.6

Therefore, 20% tip on a $173 dinner bill is $34.6

1,223 Legos

Step-by-step explanation:

324+220+135 = 1,223