Question

tama is lifting weights at the gym he is lifting four 7.5lb weights on a 15 lb bar what is the total mass of the bar and weights

Answer 1

4 x 7.5 + 15 it is 45

Answer 2

First you have to do 7.5*4 then add on 15. The equation would be 4(7.5)+15. 4(7.5) equals 30. Then 30 plus 15 equals 45. The total mass of the bar and weights is 45 lbs. I hope this helps.