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

HOPE THIS HELPED

nada

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92