4t + 2u2 - u3 ; t=2 u=1
( i can't input exponents; the second '2' in 2u2 is an exponent, and the '3' in u3 is, too.)

Which expression is equivalent to 4 square root 6 divided by 3 root 2

When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?

Ten times the square of a non-zero number is eqaul to ninety times the number