Solve the following systems algebraically using substitution.

2x - y = 4 r – 3y = -3

x=
y=

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52

What is the relationship between all triangles that can be drawn given the same three angles

Plz hurry evaluate the expression a+b where a=8 and b=19