The answer is C) y=14(0.9)ˣ and it's an exponential function
PROOF
Give to x the respective values of x & calculate y, using y = 14(0.9)ˣ
x | y
---------|---------
0 | 14(0.9)⁰ = 14
1 | 14(0.9)¹ = 12.6
2 | 14(0.9)² = 11.34
3 | 14(0.9)³ = 10.206
4 | 14(09)⁴ = 9.1845
So the annual rate is 7% (0.07). The account starts with $50. The money sits in there untouched for 8 years.
1. 50 * 0.07 = 3.5
50 + 3.5=53.5
2. 53.5 * 0.07 = 3.745
53.5 + 3.745 = 57.245
3. 57.245 * 0.07
Now you do the rest. I did up to year two for you, go ahead and complete the rest by yourself. If you have questions please ask I would love to help. :)
Answer:
3
Step-by-step explanation:
-m+8=4m-7
8=4m-(-m)-7
8=4m+m-7
8=5m-7
5m=8+7
5m=15
m=15/5
m=3
Answer: If she buys 2 packages she gets 8 balloons. If she buys 3 then it’s 12 balloons and for 4 packages it’s 16 balloons.
Step-by-step explanation: