What is the solution to this system of equations?
3x + y = 17
x + 2y = 49
a.
it has no solution.
b.
it has infinite solutions.
c.
it has a single solution: x = 15, y = 17.
d.
it has a single solution: x = -3, y = 26.
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D. It has a single solution: x = -3, y = 26.

Step-by-step explanation:

The given system is

and

.

Make x the subject in equation (2).

.

Put equation (3) into equation (1).

It has a single solution: x = -3, y = 26.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

c-   36

taxicab circle radius 9 has 4(9) = 36 points