If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation.

8x − y = −9
4x − 3y = −22

-20x -27 is the required expression.

Step-by-step explanation:

whenever we are to solve the system of equations by substitution method we have to write one variable in the form of other so as to get the value of unknowns

here, we are given two expressions:

And

We have to  substitute x in terms of y because the equation should be equivalent to y we will put in

we will get:

is the expression we will get after expression equivalent to y.

a. 32 degrees

step-by-step explanation:

here we have to use the rule.

m∠e = 1/2 (major arc - minor arc)

m∠e = 1/2 (212 - 148)

m∠e = 1/2 (64)

m∠e = 32 degrees

answer: a. 32 degrees

you