Xio

What is the pattern to this sequence? 1,3,4,7,11,18,29 I figured it was plus the last 2 numbers which will then equal the next number. But I got messed up and can't figure the next 3 numbers in this pattern, any help is helpful. THanks

a piece of rope 3m 66 m long was cut into 2 pieces. the longer piece was twice as long as the shorter piece. What was the length of the longer piece?

the mass of an airplane is 1.81x10^5 kg. if the gravitational potential energy is 3.78 x 10^7 J, how high did it fly?