Mary has an equal number of dimes and quarters. If she has $2.10 in all, how many coins of each does she have?

Two identical twins can only be distinguished by the characteristic that one always tells the truth and the other always lies.

5x^2-7x=4x^2-10 solve

emiko needs to go to the dentist it takes for 70 minutes to get there if she rides her bike this is twice the time it would take her if she took the bus right and solve an equation to find how long it takes Meiko to rap to go to the dentist to ride

What conversion ratio did she skip in this multiple step conversion

The science museum sells dinosaurs models to the town school and town library for $ 105 each. The town library buys 4 models. The school buys 6 models. What is the total cost of the models the town buys

18 feet equals how many yards

An American motor company is releasing a new car model. There will be 2 body styles (2 or 4 door) from which to choose.

Tell whether (1,10) is a solution of y>5+6x

The circumference of a circle is 28 pi meters. What is its area in terms of pi?

Which of the following expressions represents a function? x = 1 { (3, 2), (3, - 2), (4, 5), (4, - 5) } y = 4x - 1 4x2 + y2 = 16