5(3f + 3) = 3(5f - 1)

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

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.