What are all the common multiples of 12 and 15?

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?

Solving algebraic equations 2m+3=11

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points