Answer:
15.4
Step-by-step explanation:
-5×(-4.9) +7×(-1.3)
=24.5+(-9.1)
=24.5-9.1
==15.4
The answer is 36. You can multiply top and bottom by 3, or cross multiply and divide.
Answer:
Oioj[
Step-by-step explanation:
Hello,
x²+6x-7=0
==>x²+2*3x+3²-9-7=0
==>(x+3)²-16=0
Answer D
