Carlos wants to build a single-rail fence around his property that has a perimeter of 197ft. How many 8-ft boards would he need?

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

Joanie watched 1 out of three of a movie in the morning

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.