The coordinates of a quadrilateral are (5, 8), (7, 10), (9, 12), and (11, 14). after a transformation, the sign of the x-coordinate for each ordered pair has changed. which type of transformation occurred?
a) (x, y)→(x + 2, y + 2)
b) dilation; (x + 2), (y + 2)
c) reflection across the y-axis
d) reflection across the x-axis

How do you convert 1.27 to a percentage

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?

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.