Answer:
34
Step-by-step explanation:
13-(-21) = 13 + 21 = 34
The answer is 30
40 times 3/4 is 30
40 times .75 is also 30
Answer:
get in a tutor with me ill explain
Answer:
3
Step-by-step explanation:
The factors of 15 are: 1, 3, 5, 15
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42
Then the greatest common factor is 3.