5x+30- 2x+9
3x+39 is the expression.
6 years
A parent increases a child’s monthly allowance by 20% each year. If the allowance is $8 per month now. This is an exponential function, An exponential function is given by:
Let x be the number of years and y be the allowance. The initial allowance is $8, this means at x = 0, y = 8
Since it increases by 20% each year, i.e 100% + 20% = 1 + 0.2 = 1.2. This means that b = 1.2
Therefore:
To find the number of years will it take to reach $20 per month, we substitute y = 20 and find x
x = 6 years to the nearest year
100,000
because the 8 makes the 9 round up into a 10
Here's the sum of your problem.....
14 x 10,000 = 140,000 + 12,000 = 152,000
Hopefully this answers your question! :D
Slope is 0, b=3
The equation is y=0x+3, or y=3
