Find the value of x such that f(x)=90 is true f(x)=5(x+11)

Set the equation to equal 90 and solve for x:

5(x +11) = 90

Simplify:

5x +55 = 90

Subtract 55 from both sides:

5x = 35

Divide both sides by 5:

x = 35/5

x = 7

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

the answer is option a you would get more money.it would be $250.

step-by-step explanation:

for option b 200/2=100=50% 100/2=50=25% 50/5=10=5% it would be $220