Alvin’s first step in solving the given system of equations is to multiply the first equation by 2 and the second equation by –3. Which linear combination of Alvin’s system of equations reveals the number of solutions to the system? 9x + 4y = 36

6x + 2.5y = 24

solving we get Solution set = {4,0}

Step-by-step explanation:

We are given system of equation:

Multiply eq(1) by 2 and eq(2) by -3

We get y=0,

Now finding x by putting value of y in eq(1)

So, solving we get Solution set = {4,0}

center= (-2,0)

radius= sqrt2/2

step-by-step explanation:

i believe the answer is letter c) 8

step-by-step explanation: