Acar travels in the direction of 135°. what is its compass heading?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?