Dina and masha started out on a 10 km bike path at the same time. when dina reached the end of the 10 km, masha still had 2 km left to bike. if dina’s biking speed was 5 km/h, find masha’s biking speed.

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

What percent of 18 is 24? and plz explain thx.