Here are four number cards.

you cannot see one of the cards.

9 8 4?

the mean is 8.

what is the missing number?

Find the maximum and minimum values of f (x, y) = 3x+yf (x, y) = 3x+y on the ellipse x2+36y2=1x2+36y2=1 maximum value: minimum value:

Two column proof 2n-21=n/4

The graph shows f (x) = (one-half) Superscript x and its translation, g (x). Which describes the translation of f (x) to g (x) ?

I have 50 books I have to put them in boxes and one box can hold 4 books

a survery asked 200 people which sports they play regularly. it revealed that 30 played tennis, 25 play golf, 40 play softball, 10 played tennis and golf, 20 played tennis and softball, 15 played golf and softball, and 8 played all three sports.

Let S = {M, A, T, H,}. List all the ways that you can select two members of S with repetition allowed. The order in which you select the members is not important.

The lines below are parallel. If the slope of the solid line is - 3, what is the slope of the dashed line?

What's 45,089 in word form?

Write 6:15 in ratio form

What is 17% of 50 as a percentage