The numerator and denominator of a fraction are in the ratio of 2 to 5. If the numerator and denominator are both
decreased by 2, the fraction is now equal to 1.
If n = the numerator and d = the denominator, which of the following systems of equations could be used to solve the problem?

•5n = 2d and n - 2 = 2d-4
•5n = 2d and 2n- 4 = d-2
•2n = 5d and 2n- 4 = d-2
• 2n = 5d and n - 2 = 2d-4

125 tickets were sold for the jazz band concert for a total of $1,022. students tickets cost $6 each, and general admission tickets cost $10 each. how many of each kind of tickets were sold?

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?

Which table represents points on the graph of h(x) = 3√-x+2?