Anna mixes the letters S, E, L, E, C, T, E, and D thoroughly. Without looking, Mary draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that E will NOT be the letter Mary selects?

Write and solve an equation to find the number n. Four times the difference of a number and 7 is 12.

There are 7 performers who are to present their acts at a variety show. One of them insists on being the first act of the evening. If this request is granted, how many different ways are there to schedule the appearances?

A submarine was 200 feet below sea level. It rose to the surface and then dove again to four times its initial depth. The submarine then descended another 300 feet. What was the sub's final depth? Steps: 1. Write an expression to model the situation.

Find the 7th partial sum of summation of 6 open parentheses 3 close parentheses to the I minus 1 power from 1 to infinity

The Probable Cause Panel has met and has determined that there is probable cause. What will be the next step in the complaint process?

Factor x^4+6x^2-7 completely.

Factorise x squared + 22x - 75

What 3342xdx4 i need to know in 20 sec

A histogram is being made for the following set of data 78 92 98 87 86 72 92 81 86 92 If the length of each interval is going to be 6, what will the frequency of the first interval be

Calculate 7.30•1.63 and round to the correct number of significant digits