In the fifth grade at Lenape Elementary School, there are
4
7
as many girls as there are boys. There are 66 students in the fifth grade. How many students are girls?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Ataxi company charges $2.25 for the first mile and then $0.20 per mile for each additional mile, or f = $2.25 + $0.20(m - 1) where f is the fare and m is the number of miles. if juan's taxi fare was $6.05, how many miles did he travel in the taxi? if juan's taxi fare was 7.65, how many miles did he travel in taxi