Answer:
20,000
Step-by-step explanation:
20,000 is already rounded to the nearest ten given the tenths place is equal to 0.
The equation representing this situation would be 3 + 2x = c, where c is the total cost.
To find the cost to bring 12 dogs, you will replace the x with the number 12.
3 + 2 x 12 = 27
The cost would be $27.
About 485.
1100 x approx. 40 = 41000
13 x approx. 40 = 485
The formula for the area of a rectangle is Area= length times width
(2x+5) times (4x-2) = a
Solve for a by simplifying both sides of the equation, then isolating the variable
a = 8x^2 + 16x - 10