Madame Curie made some radium in her lab. She used 2 over 5 kg of the radium in an experiment and had 1 1 fourth kg left. How much radium did she have at first? (Extension: If she performed the experiment twice, how much radium would she have left?)

well the 1 and -1 are always after the 0 and the 0 is inthe middle. s thats what i would guess. but i dont know what a slope of 2 is sorry

step-by-step explanation:

this is a good question! i'll do some research and come back when i have the answer!

answer: c. im 100 percent sure

step-by-step explanation:

1. a^4+8a^3+24a^2+32a+16

2.y^8+8y^7+28y^6+56y^5+70y^4+56y^3+28y^2+8y+1

3.x^6-3x^4y^2+3x^2y^4-y^6