What is the approximate length of the diagonal Selena is going to cut?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Here is another math questions. i will keep asking different questions. 4^2x=6

Newtons second law says force(f) is equal to mass (m) times avceration (a) a scientist wamts to calculate the force of an objecy where the acceleration of gravity (g) is 9.8m/ s2 use the function to calculate the force of an object with a mass73( m) of 0.29 kilograms