Kathi starts with a number. She adds 3 to her number, then doubles the result. Finnaly, she subtracts 7. If she ended with 9, what number did she start with

Alice arrives at a train station at a time uniformly distributed between 8 p. m. and 9 p. m., and boards the first train that arrives. There are two types of trains that arrive between 7 a. m.

Encuentra el valor de x en el siguiente triángulo

it takes a machine 2 minutes and 15 seconds to assembly one chair if the machine runs continuously for 6 hours how many chairs will it produce

Madison finished 4/5 of her homework before dinner. What percent of Madison's homework is left to finish

Examine and complete the work simplifying the expression (23) 3. 1. Expand using 3 factors of 23: (23) (23) (23) 2. Apply the product of a power: 23 + 3 + 3 3. Simplify: 2x Answer the questions about simplifying and evaluating the expression (23) 3.

Solve 15 ≥ - 3x or 2/5 x ≥ - 2.

A box making machine makes cardboard boxes at a rate of 40 boxes per minute. How many minutes does it take to make 360 boxes?

Expanding brackets x (4x-1)

Change 1 14 / 15 into percentage

If you were to roll the dice one time what is the probability it will land on 4