Write fraction in simplest form (A) - 4.2:12 & (B) - 2/7: - 8/21

Of the 327 students in the ninth grade, 109 belong to an after-school club. What percent of the students belong to an after-school club? Show work.

The table shows the travelling time to work of 50 people. -Travelling time (t) in minutes- 0 <t<10 10 < t < 20 20 < t < 30 30 < t < 40 40 < t < 50 -Frequency- 5 15 13 10 7 Calculate an estimate of the mean travelling time.

How to do this 24:96 = 5:?

X^2-48 = (x-b) (x+b), what's the value of 'b'

Ann is riding her bicycle. She rides for 22.5 kilometers at a speed of 9 kilometers per hour. For how many hours does she ride?

What is the letter x in the expression 3x^2-4

Is 5 (2x-3y) and 10x-3y equivalent?

Find an equation of the line that satisfies the given conditions. through (9, 7); perpendicular to the line y = 5

A pizza place near your office has small cheese pizzas for $4 and small pepperoni pizzas for $5. You are going to pick up pizzas for fourteen people in your office.

What is the absolute value from the numbers 3 to - 105