20, you just need to substitute the x value in the equation
(-2)2-7(-2)+10=
=20
Answer:
4x+7 I believe but it could be wrong
Answer: 
Step-by-step explanation:
Given
Girl has traveled 6 km from her house
She has covered
of the distance
Suppose the total distance is x

Answer: 0.82 laps per minute
Step-by-step explanation:
Lin is running 21 laps in 25.6 minutes.
To find out her speed in laps per minute, divide the distance she has ran by the time it took her to run it.
= Distance / time
= 21 / 25.6
= 0.82 laps per minute