I think the 3rd one idk wait for someone else to answer go compare
Answer:
-5
Step-by-step explanation:
7−12
=7−12
=7+−12
=−5
-19
Explanation: they go back in intervals of -3
Answer:
5.0×10⁷
Step-by-step explanation:
(3÷6)×(10⁴÷10^-4)
(0.5)×(10⁸)
5.0×10^-1×10⁸
5.0×10⁷
Answer:
x + 7у = 23 3х + 14у = 48
Step-by-step explanation:
x + 7у = 23 3х + 14у = 48
