55.50 *1.07=59.39 then divide 6= $9.90 then *1.2 because u decide to leave a 20% tip=11.88 Answer: $11.88
Hope this helps!!!!!!!!!!!
Inverses
solve for x
replace x with f inverse
replace y with x
so
first minus 2 both sides
y-2=√(2x-3)
square both sides
y^2-4y+4=2x-3
add 3 to both sides
y^2-4y+7=2x
divide both sides y 2
(y^2-4y+7)/2=x
x turns to f inverse and y turns to x
f(x)⁻¹=

looks like they didn't want to expand the binomial
y=

answer si A
An irrational number is a number that cannot be expressed in a ratio of two numbers
a rational number is a number that can be expressed in a ratio
Ok i believe it would be D