A website offers free shipping to customers who order at least $75 dollars worth of merchandise. Della is ordering 2 flashlights at $10.00 each and plans to order packs of $5.00 batteries until her total is at least $75. Which statement best describes how many packs of batteries she must order to qualify for free shipping? A. 11 or more
B. 13 or more
C. 15 or more
D. 19 or more

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

What two criteria are needed for triangles to be similar

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)