Julia knows that it costs $25 to take a taxi to work, which is 10 km from her home. she forgets what the fixed cost is, but remembers that the variable cost is $2/km. her friend lives 12 km from julia's home. julia has $60 to spend on the weekend. can she afford a round trip to see her friend?

Asphere has a diameter of 10 in. what is the volume of the sphere?

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.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi