Answer:
X=-3 y=-8
Step-by-step explanation:

Put the second one in first


If they were equal both times they checked this means that 15% of their $ was equal to $210
so 15/100 = 210/x
so .15x=210
x=210/.15
x = 1400
Answer:
He will need to save $295
Step-by-step explanation:
he needs 450 and he has 155, so all you would do is subtract 155 from 450 and you get the rest he needs which is 295
3.625 is the answer. Enjoy!