๐๐ผA loaf of bread loses 13% of its mass when it is baked. If Dasha wants the baked loaf to have a mass of 800g, what mass of ingredients should she use?

๐๐ผIn the diagram below, BC is parallel to DE. Find the length of DE:

๐๐ผ . Find y.

๐๐ผCalculate the perimeter of the square below:

๐๐ผWrite down all integer values of x that satisfy the inequality: -7 โค 2x+1 โค 8