equations

a number is composed of x and y and its sum is 9 if the order of x and Y is inverted the result is equal to the given number plus 9 more units - find the number

My problem is with finding parametric equations.

Let x= 2+3sinT and y = -1 + 4cosT Find the rectanglar equation for this relation?

I am having problems with this parametric equation.

Find a set of parametric equations for the line through P = (1,1) and Q = (2,4)so that P = (x(0)), (y(0)) and Q = (x(1)), (y(1))

Equations using Adding and/or Subtracting

1. Solve: x + 79 = 194 2. Solve: x - 56 = 604

Housing Loan Question

Please see attached file. This is one broad question with three parts to it.

difference in elevation

difference in elevation of mountain climber 5,287 feet above sea level and a scuba diver 35 feet below sea level

Investments

Invest a total of $4000 in 2 stocks that paid 5% and 7% annual interests. At the end of the year total interests from these investments is $230. How much was invested at each rate?

time and distance

2 buses, 385 miles apart, are traveling directly toward each other on the same road. One is traveling 60 miles an hour and the the other is traveling 50 miles an hour. After how long will they meet?

slope and and perpendicular

draw line 1 through (0,-3) (3,0) what is the slope of any line perpendicular to line one. draw line 2 through origin so it is perpendicular to line 1

perform indicated operations

(-2-3)+ (-4 -(-2))