Answer:
x intercept is (45/2,0)
y intercept is (0,-36)
Step-by-step explanation:
Slope intercept form of equation of line is
y=mx+b where m is the slope and b is the y intercept
use any two points to find the slope
(10,20) (15,12)

m = -8/5
now we find out b using (10,20)

20 = -16 + b
add 16 on both sides , so b = 36
b is the y intercept , so y intercept is (0,-36)
Now we find x intercept
equation of line is y=mx+b that is 
To find x intercept plug in 0 for y

subtract 36 on both sides

Multiply by -5/8 on both sides


x intercept is (45/2,0)
Answer:-18
Step-by-step explanation: i know evertyhing
Answer:
Step-by-step explanation:
Mp=$1200
Let sp be x
SP=MP-discount% of MP
x=1200-15/100 * 1200
x=120000-18000/100
x=102000/100
x=1020
the amount of money person saves=MP-SP
=$1200-$1020
=$180
therefore he saves $180
Show that 1k+2k+...+nk is O(nk+1). So according to the definition of big-O notation we have: 1k+2k.