Answer:
Taylor can buy 7 journals
Step-by-step explanation:
Start by subtracting 9 from 30 to get 21.
Multiply 3 by 7 to get 21.
Subtract 21 from 21 to get 0.
As you can see, Taylor can buy 7, $3.00 journals without going over the limit.
Hope this helps! Pls mark brainliest
$545
let f(x)=y
y=2x+5
flip x and y
x=2y+5
2y=x-5
y=(x-5)/2
f^{_1}(x)=(x-5)/2
but f^{-1}(x)=1
so (x-5)/2=1
x-5=2
x=2+5=7
no clue....
1.3 < x < 6.7
minimum
4.0 - 2.7 = 1.3
maximum
4.0 + 2.7 = 6.7
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