If 2f + g= 10 and f - h= 1 what is the value of f + g + h ?

(a) 5
(b) 7
(c) 9
(d) 11

Abbey purchased a house using a fixed rate mortgage. the annual interest rate is 4.2% compounded monthly for 20 years. the mortgage amount is $235,000. what is the monthly payment on the mortgage? this isn't a multiple choice question have to show my work

What is the value of x? enter your answer in the box. photo attached.

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9