Change the subject of the formulae to b: : : 8a + 3b = 12. and 3b^2=27

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?