Macy is tutoring students in mathematics during her summer break. she charges $20 for a 30 minute session and $35 for an hour. the graph shows the number of 30 minute and 1 hour sessions she needs to have in order to make $280.

during her first week of tutoring, she only has 1 hour sessions, but makes exactly $280. how many tutoring sessions did macy have during the first week?

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

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?