If you had a mass of 50 kg on earth what is your weight in newtons

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).

Ineed with math stuff it involves graphs

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question