Evaluate the expression of 5x +3y+10 when x =4 and y=3

Consider the function represented by the equation 1/2 j + 1/4 k equals 3 which shows the equation written in function notation with j as the independent variable

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g