hey guys

more questions

1) convert 7428 kNm into kNmm and express in scientific notation.

2) the heel of a shoe has an area of 100mm^2 and a force of 650 kg m/s^2 is exerted on this heel due to persons weight. what pressure in N/cm^2 is exerted on the Heel?

3) find the area of the triangle which have sides at these lengths

2.87m, 3.69m, 4.58m and show working

also how do you work out a parallelogram, it says AB = 24m BC = 13m and the distance between AB and CD is 5m i need to find area and length of the shorter diagonal.

thats it for now but i need some answers on algebra on simplifing a question like 2p x 6q does that simplify to 12pq.

thanks guys

dan