Combine like terms:

(7y2 - 3y) + (8y2 - 8y)

A. - y^2+5y

B. y^2-5y

C. 15y^2-11y

D. - y^2+5y

Multiply (x + 3) (3x + 5) =

Find the upper bound for 96.3cm measured to the nearest tenth of a cm

The measures of the interior angles of a pentagon are 2x, 6x, 4x-6,2x-16, abd 6x+2. what is the measure, in degrees, of the largest angle?

one of the fish tanks on display at the pet store is shaped like an octagonal prism. how many rectangles of glass are around the edge of the fish tank

In ΔSTU, the measure of ∠U=90°, TU = 6.6 feet, and US = 2.3 feet. Find the measure of ∠S to the nearest tenth of a degree.

How many possible weights are there between 10 and 20 pounds? A. 10 B. 11 C. More than 11 D. Fewer than 10

The number of students at Marita's School decrease to 98% of last year's number. Currently there are 1170 students. How many students were there last year? Round to the nearest whole number.

Find the perimeter of a rectangle that is 7 cm long and 7 cm wide

Triangle abc is a right triangle. If AC = 4 and BC = 10, find AB. Leave your answer in simplest radical form.

Sam's dry cleaning store has 3 employees who fold the clothes. Each employee can fold 45 shirts every hour.