Currently doing a practice test for my upcoming assignment and have flat out hit the wall on the following!! Any assistance would be greatly appreciated:
1) Subtract the fractions and simplify: (x+4)/(x+5)(x+9) - (x+4)/(x+9)
2) 4/t + 1/2t + 1/2+t
3) find p in terms of the other unknowns 2p+4s+pt = q-s
4) Solve 6/A^2-1 = 1/a+1 - 1/a-1
5) The area of a rectangular vegetable garden is 384 square metres, if its length is 20m more than its width, what are the dimensions.