Estimate the following sum using front-end estimation.

48.1 + 29.7 + 11.8

70
80
90
100

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents