1 pencil, 2 pens, and 1 eraser cost a total of $0.20. 2 pencils, 3 pens, and 3 erasers cost a total of $0.41. 4 pencils, 1 pen, and 2 erasers cost $0.42. How much does it cost to buy 1 pencil, 1 pen, and 1 eraser? Write your answer in DOLLARS

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution