To find the cost of each book, you need to divide the money spent on all of the books by the number of books.
$39 / 10 = $3.90 per book
Sin 167 = 0.22495
cos 107 = -0.29237
cos 167 = -0.97437
sin 107 = 0.95630
(sin 167)(cos 107) - (cos 167)(sin 107)
(0.22495)(-0.29237) - ( -0.97437)(0.95630)
= 0.86602
hope this helps :)
7. 20
8. 680
9. 700
10. 4,000
11. 106,000
12. 5,800
Answer:
m= 450 - (5*n)
Step-by-step explanation:
m is the money left
n is the days
