There are 22 more girls than boys at the school play. The ratio is 5:7. How many students were there altogher?

David and John are sharing a pizza. The pizza is cut into twelve pieces. David ate a quarter of the pizza. John ate 4 pieces. How many pieces are left?

Simplify - 4r + s - 2r - 3s

Vinyl wallpaper is needed to cover 4 walls of a room. Each wall measures 12 feet by 8 feet and each bolt of wallpaper covers 72 square feet. Deduct 52 square feet for windows and the door. If the wallpaper costs $13.

Identify the domain of the equation y = x2 - 6x + 1. x ≤ 3 x ≥ - 8 x ≥ - 2 All real numbers

Find the area of a square if a side measures 15 mm

The cost of petrol rises by 2 cents a liter. last week a man bought 20 liters at the old price. This week he bought 10 liters at the new price. Altogether, the petrol costs $9.20. What was the old price for 1 liter?

1. Which equation represents the linear graph? A) y = 2x - 4 B) y = 2x + 4 C) y = 4x - 2 D) y = 4x + 2

Mary has $500 in her account. She makes a $350 withdrawal, deposits $100, and then gets charged a $20 fee. How much does she have in her account? A) $180 B) $230 C) $290 D) $340

A function g (x) has x-intercepts at (1/2,0) and (6,0). Which could be g (x) ? g (x) = 2 (x + 1) (x + 6) g (x) = (x-6) (2x - 1) g (x) = 2 (x - 2) (x-6) g (x) = (x + 6) (x + 2)

Roger is training for a half-marathon. The course is 13.1 miles long. Let p represent Roger's average pace in minutes per mile. Write and solve an inequality to show the average pace needed to finish the half marathon in less than 2 hours.