Isabel has scored 22, 20, and 20 points in her three basketball games so far. How many points does she need to score in her next game so that her average is 20 points per game?

18

Step-by-step explanation:

To average 20 in 4 games, she would need 80 points in total. In her 3 games, she gets 62 points.

80 - 62 = 18

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.