What is the exact value of cos 105°? A.√6 -√2/4 B. √6 +√2/4 C. √2 -√6/4 D. -√2 + √6/4

To prove p is equal to q using an indirect proof what would your starting assumption be?

Yvaries inversely as x. y =12 when x=5. find y when x=4

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?