Kayla went shopping at the Queens Mall and bought three shirts and four hats and spent a total of $66.70. The next day, she went back to the mall and bought six shirts and three hats and spent a total of $89.40. Let s represent the cost of a shirt and h represent cost of a hat. Write and solve a system of equations to find how much one shirt and one hat costs.

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step-by-step explanation:

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14

11) obtuse

13)right

15) acute