The cost of 4 new tires was $521.84 after a 6.5% sales tax was added. What was the cost of the 4 tires before sales tax was added? (A) $449.99 (B) $469.99 (C) $489.99 (D) $499.99 (E) $519.99

Verify the identity. sin (x + y) - sin (x - y) = 2 cos x sin y

Quadratic equation that contain the three ordered pairs (1,6), (3,26), (-2,21)

Isabella's mom takes her and two other friends mini-golfing. The table below shows how much different things cost at the mini-golf park. Price Sheet Item Cost Adult Game $7.00 Child Game $3.50 Cheese Pizza $17.25 10 Arcade Tokens $4.

Find the nth term of this quadraric sequence 2,8,18,32,50

A helicopter takes off from the ground 800 feet from the base of a building. It flies in a straight line directly to the top of the building.

A two digit number is such that the product of the digit is 35 when 18 is added to the number the digits change their places. Find the number

The following circle graph represents how the Townsends spend their monthly income What is the central angle measure of the section that represents "Miscellaneous"?

What is the value of the expression 6^-7*6^4

Danielle earns an 8.25% commission on everything she sells at the electronics store where she works. She also earns a base salary of $800 per week.

Kate solved an equation incorrectly, as shown below: Step 1: 9x = 72 Step 2: x = 72 - 9 Step 3: x = 63 Which statement best explains why Step 2 is incorrect in Kate's solution? A. She did not multiply 72 nine times. B. She did not multiply 72 by 9.