Y = 2x + 3 and y = 2x - 4 solve by subtition

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

In angle pqr find the measure of

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.