Yes 1/4 is a rational number
Answer:
r = - 2.5

Step-by-step explanation:
21r - 7 - r + 5 = - 52
20r - 2 = - 52
20r - 2 + 2 = - 52 + 2
20r = - 50
20r ÷ 20 = - 50 ÷ 20
r = - 2.5
Answer:
x < −
5
The notation would be (
−
∞
, −
5
)
On the graph, you would put an open dot on -5 and an arrow continuing down it