Giving 15 free points plus brainliest for correct !

marley buys a pair of running shoes for $65.99. she also buys a pair of sandals for s dollars.
which expression represents the average cost, in dollars, for each pair of shoes she bought?

4. find the geometric mean of 4 and 12. 24 8

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°