The wingspans, in inches, of seven basketball players are listed below. 74, 69, 76, 81, 65, 85, 78

What is the interquartile range of the wingspans?

Given the parent function of [tex]f(x)=x^4[/tex], what change will occur when the function is changed to [tex]f(\frac{1}{2} x)[/tex]?

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?