If supply-side policies succeed, less output is produced at every price level.
a. true
b. false
microeconomic equalibrium happens when the aggregate supply and aggregate demand curves intersect.
a. true
b. false

1. false   2. true

Explanation:

on this day in 1913, henry ford installs the first moving assembly line for the mass production of an entire automobile. his innovation reduced the time it took to build a car from more than 12 hours to two hours and 30 minutes.

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34