The ratio of boys to girls in a group is 2:1. If there are 26 more boys than girls, work out how many boys there are.

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

Which expression is rational? 6. , square root two, square root 14, square root 49