#17 PLZ help I don't know what to do?!?!?!

At a lunchron, guests are offered a selection of five different grilled vegetables and four different meats. in how many waya could one choose three vegetables and two meats?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Write the expression as a single natural logarithm. 2 in a - 4 in y