Answer:
52 minutes
Step-by-step explanation:
it takes him 13 minutes to complete 5 so if he wants to do 20 problems do 20 divided by 5 (4) then do 13 times 4=52
Answer:
875
Step-by-step explanation:
125 x 7 = 875
Answer:
21. x = 5, 23.
Step-by-step explanation:
?????Step-by-step explanation:
