Lucy earns $8.00 per hour for walking dogs and has already earned $27.50. The number of hours, n, for which Lucy walked dogs can be found using the equation 27.50 = 8n. How many hours did Lucy
walk dogs?

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Write the factored form of this trinomial 9x^2+18x-7

Do xuan nam isgoing to invest $1000 at a simple interest rate of 4% how long will it take for the investment to be worth $1040?