7. A basketball at Big 5 Sporting Goods normally costs $45. It is on sale for 20% off. What is the discount amount on the basketball? 8.What is the cost of the basketball after the discount is subtracted in question 7?

7. 9 dollar discount

8 basketball would be 36 dollars

Step-by-step explanation:

0.2 × 45 = 9

8. you would just subtract the discount (9 dollars) from 45 dollars to get 36 dollars

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pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

40 minutes

step-by-step explanation:

add the time and multiply by 2