What does semicolon mean in math

What is the perimeter of a rhombus shape street sign with a 35cm side

If each cake takes 2 1/2 cups of flour how many cups of flour are needed for 9 cakes?

5/9 - 3/8 + (-1/4) + 1 4/9 + 1 5/8=?

Mr John was paid $190 for a job that required 40 hours of work. At this rate, how much should he be paid for a job requiring 60 hours of work?

X2y - 7xy + xyz + x Classify the following expression by degree and term

Find the unit rate and round to the nearest hundredth if necessary 750 yards in 25 minutes

1 Solve: -8-2k=-2 (k+4)

Evaluate - 1 (5) (2) (-4)

Heather has $45.71 in her savings account. She bought six packs of markers to donate to her school. Write an expression for how much money she has in her bank account after the donation HAS TO MATCH ONE OF THOSE A. 45.71+6m B. 45.71-6 C. 45.71+6 D.

The sum of two numbers is 48. The second number is seven times the first number. Work out the two numbers. (answer on 1 line)