Tentukan daerah himpunan penyelesaian!

A. 4x+5y <= 20
2x+y <= 6​

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza