What is the reciprocal of 4/7 and how can you be sure its the reciprocal

When Andrei surveyed 36 random seventh-grade students in the lunchroom, he found that 7 out of 9 would like to try or have already tried snorkeling.

Un and simplify the first the

how do u delete a question? or is it like it cant be deleted?

What is the quotient of 2/9 divided by 4/15

For certain workers, the mean wage is $5.00/hr, with a standard deviation of $0.25. If a worker is chosen at random, what is the probability that the workers wage is between $4.25-$5.75. Assume a normal distribution of wages.

Six more than five times a number is the same as nine less than twice the number. Find the number.

What is 5 to the 3rd power in standard form

You can choose from groups of 2, 3, or 5 balloons, and you can choose to have them tied together with either a red ribbon or a blue ribbon. How many outcomes would make up the sample space?

rady White weighed 197 1/2 pounds when he decided to join a gym to lose some weight. At the end of the first month, he weighed 191 3/8 pounds. (Enter your answers as simplified mixed number

What is the answe to (3x+2) (3x-2)