Answer:
10
Step-by-step explanation:
Determinant = ad - bc

Answer:
They are none x- intercepts on the parabola. To find the x-intercept, substitute in 0 for y and solve for x.
Answer:
n≥-5
Step-by-step explanation:
-3n+2≥-4n-3
add 4n on both sides
n+2≥-3
subtract 2 on both sides
n≥-5
Answer:
Y=0.35x+18.99
Step-by-step explanation:
Y = total cost
X = number of letters