In steinhatchee in july, high tide is at noon. the water level is 5 feet at high tide and 1 foot at low tide. assuming the next high tide is exactly 12 hours later and the height of the water can be modeled by a cosine curve, find an equation for steinhatchee's water level in july as a function of time (t). a) f(t) = 6 cos pi over 2 t + 2 b) f(t) = 2 cos pi over 2 t + 3 c) f(t) = 2 cos pi over 6 t + 3 d) f(t) = 6 cos pi over 6 t + 2

I'm confused on this could anyone me and show me what i need to do to solve it.

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?