Ed has $100 more than Robert. After Ed spends $20 on groceries, Ed has 5 times as much money as Robert."
How much money does Robert have (equation)

What is the answer for the question

2(4p+1)/5< = (3+12p)/4 its less than or equal solve it for me an with explanation plz

It's 90 °f in the shop with high humidity. what pressure will be shown on the high-side pressure gauge (ac system on)?             a.  10 to 50 psi    b.  40 to 140 psi  c.  210 to 290 psi  d.  at least 350 psi