Can somebody work out y/7=22

Use the exact values are given approximate solutions to three decimal places on the interval (0,2pi). sin (3x) = - 1/2

The ratio of lions to elephants in the southern region of africa is 5 to 12. The total number of lions and elephants in the southern region is 357. How many lions and how many elephants are in the southern region of africa?

6,289,002 rounded to the nearest million

What is the answer 4 hundreds x 10 =

What is the length of one leg of the triangle

Marianna wants to buy a new tennis racket that costs $57.50. She has $8 and plans to save $4.50 each week. How many weeks will it take her to save the money?

Select the expression that equals-3 - (-5). A - 3 + (-5) B - - 3 + (-5) C - - 3+5 D - 3+5

X and Y are independent random variables. X is normally distributed with mean 1 and variance 1. Y is normally distributed with mean 3 and variance 5. What is the variance of Y - 2X?

Simplify - 2/3 - 3/5.

Alive, Kathy and Sheila work as medical assistant at valley clinic. Alice has work 8 years longer than Kathy. Kathy has worked half as long as Sheila. If Sheila has worked at the company for 10 years how many years has Alice worked there?