Peter went to a department store and paid $59.59 per fire alarm for seven fire alarms and a flat rate fee for installation for a total of $452.98. Ashley went to another store and paid $58.29 per fire alarm for seven fire alarms plus a per fire alarm installation fee for a total of $453.39. What is the difference in the amounts they paid in installation charges? a.$10.51
b.$9.61
c.$10.61
d.$9.51

Larger pets need to be transported in larger portable kennels. using a graphing calculator and the relationship between the width, length, and height, find the dimensions of a portable kennel whose volume is 7.4 ft3. the dimensions of a portable kennel can be expressed as width x, length x + 0.4, and height x − 0.2? what are the dimensions of a portable kennel with a volume of 7.4 ft3? use a graphing calculator to solve. round the dimensions to the nearest tenth.