Halfway through a cross-country meet, a runner’s speed is 4 m/s. in the
last stretch, she increases her speed to 7 m/s. what is her change in
speed?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Plz ( true - false) all triangles have interior angles whose measure sum to 90.