Sam spent the day at the mall. First, he bought three mules for $30 each. Later, he returned one mule. After that, he bought one
jackhammer for $50. Write the total change to Sam's funds as an
integer.

5(-9w) put expression in distributive property

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Find the radius of a circle that has a circumference of 16. the formula for the circumference of a circle is c = 2tr, where r is the radius and c is the circumference. the equation solved for r is r = c over 2π. r=4 r= 8 r=12 r= 16