PLEASE HELP...question says “Sylvia bought four pens for one dollar each and five folders for three dollars each. Write a numerical expression to represent this situation and then find the total cost in dollars” What the hell im so confused

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

On this question. a hypothermia occurs when a person's body temperature drops below 95 degrees fahrenheit. write and solve an inequality that describes how much lower the body temperature of a person with hypothermia will be than the body temperature of a person with a normal temperature of 98.6 degrees fahrenheit

Find the degree 3 taylor polynomial p3(x) of function f(x)=(-3x+15)^(3/2) at a=2