Answer:
x ∉ R
Step-by-step explanation:
x² = - 21
if x² < 0 => x ∉ R
Ok so its 50, -7.6, -7.64. then -157 divided by 20
If there is 1000 seats, and the students took 45% percent of them, then 450 sixth graders went on the trip
Answer:
7x+5=7x+5 they are equal same lines
Step-by-step explanation: