In a practice run, a race car driver's speed is clocked at 140.076 mph at the end of
his first lap, and at 170.924 mph at the end of the next lap. how much faster was he
driving at the end of the second lap (in mph)?

What are the soultion(s) to the quadratic equation 40- x^2=0

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.