39. The mode of the following frequency distribution is 67 and sum
of frequencies is 47, find the value of x and y
Classes
40 - 50
5 0 - 60
60 – 70
70 - 80
80 - 90
Frequency
x
15
y
7

Andy is making a design using ice cream sticks that are 4 and 1/2 in long he wants this long side of his designed to be no longer than 24 inches what is the greatest number of sticks that any can use on his long side of his design

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Me. i can't figure out this question. give an explanation too. .