Which expressions are equivalent to x+x+x+2 ? 3x+2 3+2x none of the above pls how to do 'll mark as the

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Melissa is purchasing a $160,000 home and her bank is offering her a 30-year mortgage at a 4.9% interest rate. in order to lower her monthly payment, melissa will make a 20% down payment and will purchase 3 points. what will her monthly mortgage payment be? a. $645.98 b. $650.46 c. $662.93 d. $606.69