Can anyone solve 1 1/3 x 1 3/4?

15 points

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

Acircle has a circumference of 28.36 units what is the diameter of the circle