Hazel brought a racing bicycle from a teammate that would have cost her 1,500 new, but she got it for 845 used. what is the percentage of change in price

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

2x minus y equals 6, x plus y equals negative 3