Identify the initial amount a and the rate of growth r (as a percent) of the exponential function y=10(1+0.4)^t. Evaluate the function when t=5. Round your answer to the nearest tenth.

Ineed with this. the figure is made up of a square and a rectangle. find the area of the shaded region.

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /