PLEASE HELP‼ A biologist measured the length and mass of 20 reptiles. the equation
y = 0.3x - 2 is the line of the best fit for data, where x is the length, in centimeters, and y is the mass in grams.
Based on the equation, what is the approximate length of a reptile that has a mass of 20.5 grams?
a. 62 cm
b. 66 cm
c. 70 cm
d. 75 cm
Please answer quickly!!

2a+7+4ahow many terms? how many variables? any like terms? yes noif yes, which ones? what are the coefficients? any constants? yes noif yes, which ones? simplify the expression by combining like terms and constants: how many terms now?

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

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?