Answer:
10 and 31/100
Step-by-step explanation:
Four times a number plus twenty one
Well since 19/50 can't be simplified you have to double 9/25 which is 18/50 so then add 18 + 19 = 37 So 18/50 + 19/50 = 37/50 so 37/50 of the students ride the bus or walk to school.
Divide the % of tax u want to leave by 100 then multiply that by the total. that will give u the $ of tax. if u add that on to the sub total that will give u the final total.
Example:
18/100= .18
.18x$23.50= $4.23 (this is the tax in $
$23.50+$4.23= $27.73
