Trianglia is a triangular island. each side increases by 2.5 km. using l (l is the variable) for the length of the shortest side, the perimeter is represented by the expression:

l+(l+2.5)+(1+5)

sean thinks that the expression 3(l+2.5) could also be used to represent the perimeter.
is sean correct?

In which of the situations can information about tyler be represented by the expression r+3 when r represents information about ray? check all that apply.

Find the value of x for which abcd must be a parallelogram -9-6x x-30

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a. m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum. how many seats does the larger van have?