2)After fuel prices rose by 15%, a family's annual heating bill was £1654. What would the bill have been without the price increase?

Icould really use some with this question.

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount