Answer:
Final cost = £779
Step-by-step explanation:
It is given that:
Cost of summer holiday = £650
Amount increased by 11%
Increased cost = 11% of 650
Increased cost = 
Increased cost = 0.11 * 650 = £71.50
Amount after increment = 650 + 71.50 = £721.50
Further increase = 8%
Amount = 0.08 * 721.50 = £57.72
Final cost = 721.50 + 57.72 = £779.22
Thus,
Final cost = £779
Answer:
It’s a graph and we can’t help you but you can plug the equations into desmos (an online graphing calculator) to generate a line
Answer:
Part A:
Rent = $7380
Mortgage payments = $9800
Insurance = $145
Taxes, insurance, maintenance =
= $2830
Loss of Interest on security deposit = (650*6%) = $39
Interest lost on down payment and closing cost = (4,500*6%) = $270
Growth in equity = $225
Annual appreciation = $1700
Tax savings for mortgage interest = (9,575*28%) = $2,681
Tax savings for property taxes = (1,780*28%) = $498
Total rental cost =
dollars
Total buying costs =
dollars
Part B:
You should consider rent because the cost of renting is less than the cost of buying.
x is the temperature and y is the number of swimmers. If there are 80 swimmers, then y = 80 instead of x = 80
This is how Corey should have solved
y = 1.505*x - 88.21
80 = 1.505*x - 88.21 <--- replace y with 80
1.505*x - 88.21 = 80
1.505*x = 80 + 88.21 <--- add 88.21 to both sides
1.505*x = 168.21
x = 168.21/1.505 <--- divide both sides by 1.505
x = 111.767
x = 111.8
If there are 80 swimmers at the pool, then the possible outside temperature is roughly 111.8 degrees F. This temperature seems awfully large, so it's possible that Corey's regression equation has limited scope; in other words, it isn't too useful if x is outside a given interval.