5(a - b) + 6(a + b) - 7(a - 2b) = 5a-5b+6a+6b-7a+14b= 4a + 15b
<span>In the question "Jane Marko buys a car for $43,900.00. In three years, the car depreciates 48% in value. How much is the car worth in three years", the correct answer is $22,828.00 (option A).
The cost of the car = $43,900.00
Depreciation in value in three years = 48% of $43,900.00 = 0.48 x 43,900.00 = $21,072.00
Value of the car after three years = $43,900 - $21,072 = $22,828.00</span>
<span>F(x) = x + 3
y = x + 3
y - 3 = x
so
</span><span>F ^-1(x) = x - 3
</span><span>The zero of F ^-1(x) is -3
answer is
</span><span>-3</span>
Slope is m=-2/5 y- intercept is b=4 equation is y= 2/5x+4
not proportional
Negative slope
