Luna brought all her savings with her to rome, in euros.
for the first week, she spent the same amount of money
each day. the table shows how much luna had left at the
end of each day.
what was the initial value of luna's savings?
day
euros
2
315
280
2
3
245
210
175
140
105
350 euros
80 euros
80 euros
35 euros
315 euros

What are the sotions to the quadratic equation 9x^2=4

Using elimination, what is -4x+2y=-12 4x+8y=-24

Without any equipment, you can see stars that are 2{,}800{,}0002,800,0002, comma, 800, comma, 000 light-years away. by looking through a small telescope, you can see stars that are 3{,}112{,}000{,}0003,112,000,0003, comma, 112, comma, 000, comma, 000 light-years away. approximately how many times as far can you see using a small telescope as without any equipment?