Maddox has 4 boxes with 32 marbles in each box. he has 7 boxes with 18 shells in each box. if he gets 20 marbles from a friend, how many marbles and shells does he have?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.