Write the following using algebraic notation, using the letter x for any unknown numbers:
I think of a number, subtract three, then multiply by four.
Please help thank you

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

ratio is 2 : 9

the answer is three

13.5 : 3

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.