CAN SOMEBODY ANSWER THIS QUESTION PLEASE!! 1.) The price of gasoline went from $2.25 a gallon to $3.50 a gallon. What is the percent of
increase? Round to the nearest percent.

2.) Chris scored a 94 on his first math test. On his second math test he scored an 86.
What is the percent of change in his scores? Round to the nearest percent

what is the model?

step-by-step explanation:

where are the graphs?

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.