25x5 i need help answer asap

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

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?