Express the square root of -8 in i notation

Which math sentence can be used to determine if the triangle is a right triangle?

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?