Change 7.5m into mm.

What’s the answer to this?

Can some one me with these questions

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i