Which graph shows the graph of a sine function with an amplitude of 5?

Which expression is equivalent to -5(3x - 6/7)

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.