A school supply kit costs x dollars. A sale offers a 20% discount on the kit. Which expression shows how to find the cost, in dollars, of the kit after the discount?

A. 0.8x
B. 0.2x
C. 1.8x
D. 1.2x

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?

Ineed to know the answer to this algebra question.

Pls never taught i’m really confused and i rlly need