The sum of the square roots of any two sides of an isosceles triangle is equal to the to the square root of the remaining side true or false

What is the number 321,000,000 in scientific notation? also what is the number? ?

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.