A rectangle has sides of length 2x and 4+c, with a perimeter of 15cm. Write down an equation that involves x. a) 3x + 14 = 15
b) 6x + 7 = 5
c) 3x + 14 = 15
d) 6x + 14 =15

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.