A shop owner bought 30 files and some diaries. he paid $82.50 for the files. each diary cost 10 times as much as a file. what was the cost of each diary?

A fair coin is tossed 10 times. what is the probability that at least two heads appear

Gills dealership had v vehicles on his lot. He had sold 9% of the vehicles on his lot by the end of last month. Which expression shows the number of vehicles left in Gill's lot?

A nervous kicker usually makes 70% of his first field goal attempts. if he makes his first attempt, his success rate rises to 90%. what is the probability that he makes his first two kicks?

Complete the pairs of corresponding parts if △ RST ≅ △ TXY. ∠ R = ∠ XYT ∠ XTY ∠ TXY

What is x^2 + v = w when you have to make x the subject im really stuck

4x - y = 6 and 2x - y/2 = 4

He bought four violas for 40$ each. Later he bought one whistle for 100$. After that, he returned one viola. Write the total change to his funds as an integer

Alisa can ride her bike 2 miles in 7 minutes, how long would it take her to ride 10miles if she rides at the same rate?

The length of a triangle with area 54 m² is 9 cm. What is the perimeter of the rectangle, in centimeters? A. 6 B. 12 C. 15 D. 25 E. 30

A faucet's wheel has a radius of 5 cm. The axel has a radius of 0.5 cm. The input force is applied to the faucet wheel. What is the mechanical advantage of this simple machine?