Helena has $1.50 in dimes .she says i know i have 15 dimes because one dime is one a dollar

What expression is equivalent to (2x-1)(x-3)?

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

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.