Write an equation to solve

The library bought books at $15 each and a video rack for $35. These purchases cost $395 altogether. How many books were bought?

A data includes 108 body temperature od healthy adult humans having a mean of 98.2 f and a standard deviation of. 64f. Contruct a 99% confidence interval estimu of the mean body temperature of all healthy humans.

A local newspaper compiles data on the number of days, X, people in a neighborhood receive the newspaper. The probability distribution for the data is shown in the table below.

33.3333 simplified all the way in decimal form

Write two different expressions that are equivalent to 12-15x use factoring to write one of the expressions

How do you turn a fahrenheit to kelvins?

Louis wants to carpet the rectangular floor of his basement. The basement has an area of 864 sq. Feet. The width of the basement is 2/3 its length What is the length of Louis's basement.

A radio station broadcast signal over an area with the radius of 50 miles. the station can relay the signal and broadcast over there with the radius is 75 miles. how much greater is the area of the broadcast region when the signal is relayed.

There are 126 seats in a meeting room. There are 9 seats filling up each row. There are 90 people seated, filling up full rows. How many rows are empty? Answer the question with steps or you will not get brainliest.

I have 30 ones, 82 thousnads, 4 hundred thousands, 60 tens and 100 hundreds. what am I?

What is the answer to: if T (n) = 4n-1