Last month the cost of using the air pump at a garage was 20p. This month the cost of using the air pump is 50p.
Tom says,
“50 = 20 = 2.5 so the cost of using the air pump has increased by 250%"
Is Tom correct?
Explain your answer.

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?