What the definition for equal groups to find how many in all

Write an equivalent expression. (-11f) - 2 (-f - 4) - 10

From the top of a 150-ft lighthouse, the angle of depression to a ship in the ocean is 22°. How far is the ship from the base of the lighthouse? (Round your answer to the nearest foot.)

F (x) = - 1/4 (x-1) ^2 - 3 I dont understand how to figure this question out, i ned the vertex, axis of symmetry, and the zeros.

Solve for x. 8 - 3x - x = 12

Samuel has 20$ in his savings account before he makes a deposit of $160. After 2 weeks, he withdraws $160. How did samuels savings account balance change?

Simplify - 2 (v+5) + 5 (4v-2)

Find the square root of 156.25 by division method

Identify the percent of change as an increase or a decrease. 120 meals to 52 meals response - correct Increase Decrease Question 2 Find the percent of change. Round to the nearest tenth of a percent if necessary. %

9. We measure time in hours. Suppose 12 noon is represented by the integer 0. a) Which integer represents 1 P. M. the same day? b) Which integer represents 10 A. M.

A cube has a surface area of 294 square cm. Find the length of one side.