write as an equation: four times a number added added to 9 times the same number equals 52. find the number

1/2 less than what over 20

Ceramic tiles sell for $13.08 for a box of 12 tiles. Find the price per tile.

Find the sum of the following situation: A hang glider descended 33.57 feet, and then ascended 14.98 feet.

A racecar driver completed three laps in the Times shown below. 38.28 second, 38.9 seconds, and 37.83. What was the total time, in seconds, that it took the driver to complete all three laps?

It's the 6th day of autumn and the first leaf has fallen! If the number of leaves on the ground is quadrupling with each passing day, what is the total number of leaves that have fallen to the ground by the end of the 18th day of autumn?

Solve 3x2 18x 15 = 0 by completing the square. a. 3 (x 3) 2 = 6; x = - 3 square root 2, x = - 3 - square root 2 b. 3 (x 9) 2 = 12; x = - 11, x = - 7 c. 3 (x 3) 2 = 12; x = - 5, x = - 1 d.

A pillow that usually cost $18 is marked down 25% what is the markdown and what's the new price

Square root of one hundred and twenty three

Suppose commute times in a large city are normally distributed and that 62.50% of commuters in this city take more than 21 minutes to commute one-way. if the standard deviation of such commutes is 6.2 minutes, what is the mean commute?

Brenda deposits $500 in a savings account that pays a simple interest rate of 2.5% per year. How much internet will Brenda earn after 18 months