John got the following scores on his tests. what is the interquartile range of his scores? 78, 57, 90, 60, 89, 69, 95

a. 18

b. 20

c. 30

d. 38

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a.f[g(3)] b.g[f(5)] c.g{f[g(-4)]}