What is the value of the expression 2x2 + 3xy – 4y2 when x = 2 and y = –4?

Which is the product of 58 and 1,000? a. 0.058 b. 5,800 c. 58,000 d. 580,000

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project