there are 17 students in the third grade and twice that number in the fourth grade. there are
11 boys and 19 girls in the second grade. how many students are in grades 2 through 4
altogether?
students

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3

What is the answer to this problem? ignore the work. what is the correct answer?