D. Scalene
Step-by-step explanation:
scalene triangles have no equal sides and in this there are no equal sides for JKL
acute triangle means all three sides are less than 90 so its not an acute triangle
cut 138 centimeters off
step-by-step explanation:
250-112 = 138
the answer is "add 2y and y"
you need to collect the like terms first.