6 Select all the correct systems of equations. Which systems of equations have no solution? x + 4y = 23 -3x = 12y + 1 2x + y = 17 -4x = 2y - 34 2x + 4y = 22 -x = 2y - 11 3y = 10 - x 2x + y = 7 2x + y = 15 x= 15 - 2y y = 13 - 2x 4x - y = -1

The table above shows approximate conversions from gallons to liters. what is the value of x?

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?

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation