Subtraction with unlike denominators 3/4-3/8

The equation q=12c represents the quantity q of t-shirts in any number of cartons c. What is the constant of proportionality?

What kind of sequence is this? 36, 144, 432, - 864, ...

A bicycle shop rents bicycles for $3.50 per hour and helmets for $6 per day. Ashley has $20 to spend to rent a helmet and a bicycle for some number of hours. For how many hours can she rent the bicycle?

Manuel finished his English assignment in 1/2 hours. Then he completed his chemistry assignment in 2/5 hours. What was the total amount of time Manuel spent doing these two assignments?

Luisa claims that when she subtract two negative integers the result is always positive. Is she correct? Explain.

The cost of 12 gallons of gas is 28.68 how many miles can you expect to drive

Antonio sold skis for $220. His wholesale cost was $165. What was the percent markup?

Quilt is 42 square feet what are it's possible dimensions if they must be whole numbers

Step by step ways to solve 3.4 x 4.72

Which of the following values is equal to - (-4.3) ? -4.3 0 4 4.3