Solve the system of equations using the substitution method (show work)  2x-3y=20 11x+3y=-1 

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

Which expression is equivalent to 3^3 + 2^2?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers