Michaela spent a total of 12 1/2 hours doing her online learning work this week. If she spent 5 3/4 of those hours working on Monday, how much time did she work the rest of the week?

6 3/4 hours

Step-by-step explanation:

12 1/2 turned into an improper fraction is 25/2. 5 3/4 turned to an improper fraction is 23/4. The common denominator for these fractions is 4. So you have 50/4 -23/4 which is 27/4. The proper fraction form would be 6 3/4.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.