In the diagram, the length of segment bc is 23 units. what is the length of segment dc? 3 units 8 units 13 units 33 units

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?