What does the slope of the graph tell us in the situation? A. It tells us that there is a fixed cost of approximately $35 for ordering hats.

B. It tells us the amount that the total cost increases for each additional hat ordered.

C. It tells us that when 9 hats are ordered, the total cost is approximately $160.

D. It tells us that when the number of hats ordered increases by 10, the total cost increases by approximately $175.

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Prove that 16^4-2^13-4^5 is divisible by 11.

Peyton's field hockey team wins 4 games out of every 7 games played. her team lost 9 games. how many games did peyton's team play?