What is the solution to this equation?
3x = 156
оа. х = 52
ов. х = 153
ос. x= 42
ор. х = 468

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Arectangular garden is 5 feet long and 3 feet wide. a second rectangular garden has dimensions that are double the dimensions of the first garden. what is the percent of change in perimeter from the first garden to the second garden?

Random variables x poisson~ ( a) ,y poisson ~ ( a) . x and y are independent. if 2 1, 2 1. u =2x+ y-1, v=2x- y +1. find: ) cov (u ,v ).