Answer:
brainiest?
Step-by-step explanation:
A 9-kg bag of mangoes for $12
Given:X: The blue marbles.
3X: The red marbles.
A box contains
144 marbles.
SOLVING:X + 3X = 144
4X = 144
X =

X = 36
===> The blue marbles.If there are
3 times as many red marbles as there are blue marbles:
3(36) = 108
===> The red marbles. SOLUTION
TESTING:

GOOD LUCK...!!!
Answer:
B
Step-by-step explanation:
5t < -15 (divide by 5 on each side)
t < -3