Chi needs some school supplies for 3 classes. he has tokens to use in the machine at school. he bought notebook paper for 60 tokens, a pen for 15 tokens, and 2 pencils. if the pen is 3 times the price of 1 pencil, how many tokens do 2 pencils costs?

10 Tokens

Step-by-step explanation:

15 ÷ 3 = 5 (15 is 3 times of 5)

5 × 2 = 10

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1