The President of the United States

The President of the United States

Biden has supported campaign finance reform including the Bipartisan Campaign Reform Act and overturning Citizens United; the 1994 Violent Crime Control and Law Enforcement Act; the American Recovery and Reinvestment Act of 2009; student tax credits; carbon emissions cap and trade; the increased infrastructure spending.

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

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering