I need help ASAP. The top says "Suppose a golf course hosted a fundraiser tournament to raise money for a local school. The histogram shows the final scores of each participant. a. What is the relative frequency of scores of 67-74?

b. What is the relative frequency of scores of 91-106?

Please help.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32