This year, Martin's income is 1 /4 greater than his income from last year. If s represents his income from last year, what is his income this year?

Can someone me and do the problem plz so i can understand it more better

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Jubal wrote the four equations below. he examined them, without solving them, to determine which equation has no solution. which of jubal’s equations has no solution hurry