Solve the equation. 5x 8 − 3x = −10 x = −9 x = −1 x = 1 x = 9

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

Rick is on a bicycle trip. every 4 days he bikes 230 km. if rick keeps this same pace for 16 days, how many kilometers will he bike?