Help, very easy question but i can't understand
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10

Step-by-step explanation:

10 is the greatest common factor that you can divide into both 40 and 50.

10

Step-by-step explanation:

Try and find the prime factorization of 40 and 50.

40=2*2*2*5

50=2*5*5

Multiply the prime  factors that are common to both numbers.

2*5=10

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

i think the length is 12 and the width is 17