Help please!! The dollar value of a house is a function, f(t), of the number of years, t, since the car was purchased. The function is defined by the equation
f(x)=15,000(2/3)^x. The graph f(x) is shown.
What is the y-intercept and what does it represent in context?
a.15,000; the value of the house at the time of purchase
b.15,000; the value of the house after 1 year.
c.2/3 ; the percent decrease in value of the house each year.
d.15,000; the amount the value of the house decreases each year

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

Iam not sure , but probably 750 or 7.5