Do you know what b is, it's not letting me put 72/100?

In the surface area formula for cylinders which expressionrepresents the lateral area

Acourgette seed and a pumpkin seed is planted p(courgette seed germinates) 4/5 and p(pumpkin seed germinates) = 1/6 what is the probability that both seds germinate

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)