Answer: r + 6
Step-by-step explanation:
Shown in the question, r represents the numbers of marbles that Rory has. Conrad has 6 more marbles than Rory, which means than is r + 6.
you subtract the powers when dividing
therefore 7-(-4)
=7+4
=11
=x^11
Answer:
x=34
Answer: 240 minutes
because each hour is 60 minutes and she needs to bake 4 pies that each take 1 hour each.