The price of a computer was decreased by 30% to £147. what was the price before the decrease?

£210

Step-by-step explanation:

A decrease of 30% represents 70% of the original cost.

100% represents the original cost

Divide the price by 70 to find 1% then multiply by 100 for original cost

original cost = × 100 = 2.1 × 100 = £210

210

Step-by-step explanation:

let original price =x

x×70÷100=147

x=147×100÷70=210

a) false; the points do not have to be in a straight line.

step-by-step explanation:

the points could be in the shape of a triangle

b is incorrect

c is incorrect because it is saying the immediately don't form one when they are capable of doing so

d is incorrect