21. Gabi has 7 bags of apples with x apples each. a. Write an expression to represent the total number of apples.

Taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor with some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)= 2x+1 g(x)= 2x^2+1

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 ).

If point a= (10,4) and b= (2,19) what is the length of ab 17 units 15 units 23 units 12 units