Two investments totaling $49.500 produce an annual income of $1770. One investment yields 2% per year, while the other yields 4% per year. How much is invested at each rate?​

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?