How many permutations exist of the letters a, b, c, d taken four at a time?

A. 24

B. 12

C. 4

1/2 + 1/3 add write in simplest form

4x-7y=10 y=x-7 using the substitution method

Consider the equation 5x=8. Write a scenario pertaining to the girls studying that is represented by this equation. Solve the equation and explain what the answer represents.

For each 15 people that attend a wedding, there is one person put into the catering staff. Write an function to represent the situation.

What is the total probability of ending up with 3 blue marbles out of 7 marbles from the bag?

The cake uses eggs and potatoes in a ratio of 2:5 if he uses 6 eggs how man pototoes will he need

If sally needs to make $799.99 dollars but she makes 5.00 a week for a allowance how many months will it take sally to get all the money?

One apartment costs $1000 a month with deposit off $1500. Another apartment costs 1175 a month with a 1200 deposit. how many months will it take to equal the same amount

Which is larger 0.076 or 0.08?

Simplify, if possible. log2 (0.5) 4