Answer:

Step-by-step explanation:
slope of r:

s is perpendicular to r:

(5)(3x)+(5)(4)+(5)(-x)
15x+20-5x
Answer: 10x+20
ANSWER:
y= 11/3x-7
REASONING:
Because if you do the slip equation m=y2-y1 divided by x2-x1 you get 11/3 or -11/-3 which is equal to 11/3 which is your slop and since the y intercept is already one of your points (0,-7) then your formula would be y=11/3x-7
Answer:
P=$880,I=$92.40
P=$675,I=$94.50
P=$770,I=$96.79
Step-by-step explanation:
Simple interest rate is the interest eared on principal amount only over time:

#$880 at 5.25% for 2 years

Hence, the interest earned is $92.40
#$675 at 3.5% for 4 years:

Hence, the interest earned is $94.50
#$770 at 4.19 for 3 years:

Hence, the interest earned is $96.79
Probablity=desiredoutcomes/totalpossibleoutcomes
see which ones fit
dimes and quarters are over 9 cents
there are 11+3 or 14 of them
total outcomes=12+9+11+3=35
probablity=14/35=2/5
probablity is 2/5