Which of the following is equivalent to the expression below? 3(28+19)

A: 3+(28 x 19)
B: 3(28)+19
C: (3+28)x(3+19)
D: 3(28)+3(19)

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.