Circle = pi*r^2

Diameter = 80, so radius = 40

Circle = pi*40^2 = pi*1600 is approximately 5026.55 yards

**Answer:**

$100

**Step-by-step explanation:**

We can see from the graph that the rate of change is $20. This is because for every increase in x, the value of y increases by $20.

Going from this, the value at x=4 is $80; this will make the value at x=5

80+20 = 100

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**Answer:**

D. 6x2^2y^2 + 10xy^2 - 2x^2y^3

**Step-by-step explanation:**

**Answer:**

If we think of one full rotation, it will be 360 degrees. If one full turn is 360 degrees, one-third of that will be the turn that Jacob made. One-third times 360 is 120 degrees

**Answer:**

The total amount that they can spend on their food bill is $41, including the delivery charge of $6. The equation below represents the situation, where x is the cost of each friend's meal.

**Step-by-step explanation:**