Is this ? Then . That's just arithmetic.

Is this ? (Use "^" to indicate powers.) Then .Given that y = x2 + 3x - 5, find y when x = 4

Multiply N times 2.20 and add 3.2. Bag of Kitty Litter : £2.20 per bag + £3 postage

Let N be the number of kitty bags that Jenny buys.

Write down an equation to represent the amount, £=A, that jenny will pay for N bags of cat litter by mail order

I can't understand your picture. But the perimeter is the sum of the lengths of all sides and area is "width times height". Set those equal.3. The area of a rectangle has the same numerical value as the perimeter of the square, By forming an equation in X, find the length of the rectangle.

..................

6cm

(x + 4) cm

2. ...............

18cm

I really hope one of you guys can help as im stumped.

Thanks[/QUOTE]