The rental rate for a hedge trimmer has a one time fee of $20 plus $30 for each day of the rental. the graph shows points representing the total cost of the rental.

which linear equation, in slope-intercept form, that models the total cost of the rental over time?

a. y = 20x

b. y = 30x + 20

c. y = 30x

d. y = 20x + 30

e. y = 2x + 80

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).

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?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'