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(Without having a set question to give advice about!) It is important to begin by dissecting the question, picking up on the key terms to determine what the question is asking of you. Once you have done t...

X12 = £150 x (1-0.25) = £112.50 Teli-vise: £235 / 2 = £117.50 Xpert: £60 + (12 x £8) = £156 Therefore the X12 is the cheapest television after the discount has been applied.

4y+2=6y-2, add 2 to both sides. 4y+4=6y, subtract 4y from both sides. 4=2y, divide both sides by 2 y=2

points of intersection are (-1,1) and (2,4). Area of the shaded region is 4.5.

Electronegativity decreases from fluorine to astatine in group 17. This is because fluorine has the smallest number of electron shells in the group, which means there is less of a shielding effect than th...