Really need help i am failing these lessons Mali ran 21 miles in 3 hours. How many miles could she run in 5.5 hours?

62.2 miles
30 miles
38.5 miles
40.5 miles
3.

Solve the word problem using unit rates.

Carl solves 12 multiplication problems for every 4 addition problems. If he solves 23 addition problems, how many multiplication problems does he solve?

69 multiplication problems
54 multiplication problems
92 multiplication problems
46 multiplication problems
4.

Find the fraction as percent.
15%
12%
17%
14%
5. \

Solve the proportions.
4.25
10
8
9
6.

Find the fraction as percent.
0.7%
70%
0.07%
7.0%
7.