Answer:
C. are made of electrons, protons, and neutrons
D. are the smallest unit of matter
Step-by-step explanation:
Answer:
-12
Step-by-step explanation:
(21-15/5)-(75/5x2)
=(21-3)-(15x2)
=18-30
=-12
(Following the order of PEMDAS)
She would need about 6 bags because 7*3=21 6+3=18 so about 6 bags
Q1.
x-9=-6x+5
x=-6x+14
7x=14
x=2
Q2.
0.6(y+3)=4.8
y+3=8
y=5
Q3.
-6p-21=3p-12
-21=9p-12
-9=9p
-1=p
Q4.
3=b+3
0=b