Evaluate the expression 3.14(a^2 + ab) when a = 4 and b = 3. (Input decimals only, such as 12.71, as the answer.) (4 points)

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas

b.-4 units

all you   do is count how many times you move

my answer got deleted but it's a

step-by-step explanation:

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6