X= -4; f(x)= -15
X= 2; f(x)= 3
X=5; f(x)= 12
Answer:
Step-by-step explanation:
price of 1 pen= $ 2
price of 1 pencil= $1
total money spent= $12
Let the number of pen be a and number of pencil be b.
2 a + b = 12 ----------------Equation 1
We have, she bought 3 more pens than pencils
a - b = 3 ------------------ Equation 2
Equation 1 +Equation 2,
2 a + b + a - b = 12 + 3
3a = 15
a = 5
Substituting in equation
5 - b = 3
b = 2
Number pencils Ava bought = 2
Answer:
-18.29
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
duh add 1 and 1 merge it together to get 11
