the mulraneys hired a contractor to build an addition to their home. the contractor proposed a rectangular room with a perimeter of 50 feet. the mulraneys asked the contractor to change the perimeter to 60 feet by increasing both the length and the width by the same distance. by how many feet did the mulraneys ask the contractor to increase the length of the room?

2-digit numbers less than 91 which are 1 less than a multiple of 10

According to the 2008 u. s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets