Answer:
plug in -3 where any x is in the equation. I reccomend doing it in parenthesis just so things work out nicely
Step-by-step explanation:

Given a = 7 and b = 13, this gives us for c:
6 < c < 20, i maybe be wrong
Answer:
54 m/h
Step-by-step explanation:
216 ÷ 4
it is simple maths my dude
She will be able to fill 3 jars because 4/5=16/20 and 1/4 = 5/20 so 5/20 x 3 = 15/20