Marcus has $7.40 in change consisting of four more dimes than quarters. find the number of dimes and quarters.

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

I'm confused on this could anyone me and show me what i need to do to solve it.

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?