Camila invests money in an account paying a simple interest of 3.4% per year. If she invests $50 and no money will be added or removed from the investment, how much will she have in one year, in dollars and cents?

Solve the equation by completing the square. x^2+2x=17

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.