Mean mark for a class is 70%

20 whom are boys

the boys get a mean mark of 62%

work out the mean mark for girls

A pair of integers whose sum is 20

Miles is planning to spend 2/3 as many hours bicycling this week as he did last week. Is miles going to spend more hours or fewer hours bicycling this week than last week

Simplify the following expression. 7x - 4y + 5z - 2x - 10y + z A) 5x - 14y + 6z B) 9x - 14y + 6z C) 5x - 6y + 6z D) 9x - 6y + 6z

Suppose the school would like to install a 2 yard buffer around the field from the edge of the wall to the stands. What is the area, in square yards, of the buffer area around the field? A) 424 B) 636 C) 856 Eliminate D) 1121

In the set of real numbers, the first number less than - 3 is - 4. True False

A sweater was marked up from $40 to $50. If p is the percent increase in the price of the sweater, which proportion can be used to calculate p? A. B. C. D.

Victor has a credit card with an APR of 13.66%, compounded monthly. He currently owes a balance of $1,349.34. Assuming that Victor makes no purchases or payments, how much will he owe after one year, to the nearest cent?

A bag contains 3 blue cards, 8 green cards, 12 red cards, and 4 yellow cards. You randomly choose a card.

Is 48 inches lesser than 2 yards and is 2 yards lesser than 7 yards

Two bird sit at the top of two different trees the distance between the first bird and a bird watcher on the ground 29.7 the distance between the bird watcher and the second bird is 42.