The formula for simple interest is I = Prt where P is the principal, r is the interest rate, and t is time. Solve the formula for r.

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

In which quadrant does the point lie? write the coordinates of the point. a. quadrant ii; (–2, –4) b. quadrant iii; (2, 4) c. quadrant iii; (–2, –4) d. quadrant iv; (–4, –2)