At one time, in the United States, 398 species of animals were on the endangered species list. The
top groups were mammals, birds, and fish, which comprised 55 $\%$ of the endangered species. Birds accounted for 0.7$\%$ more than fish, and fish accounted for 1.5$\%$ more than mammals. What
percent of the endangered species came from mammals, birds, and fish?
right. Question 68. The top three oil producers in the United States are the Gulf of Mexico, Texas and Alaska. Um, together these three companies produce 64% of us is oil production. Um, Gulf of Mexico and Texas together produce 47%. All right, And then Texas produces 3% more, then Alaska. I don't set this up as a system of equations. Okay, so first of all is to find our variables. That's called both Mexico percent. Okay. Of Mexico's percent, we're equal G Texas's percent for tea. You know, last his person. What? So we know that G plus t was a g close? Tiu us? Okay, together, all 3 to 64%. You know that? Just the gulf in Texas. Mexico's pretty big. It's not really just the United States. Um, does he go from Mexico in Texas together at 47%. And then, um, see Texas use three more than Alaska, so t equals eight. All right, So, um, the first thing to do here, let's attract these two equations down. So G. Martin's G is zero. Too much tea is zero a mind. Zero is just a 64 minus 47 17. So Alaska, 17% and then Texas. This me more than that. So that's been a B 20. And then together they're 64% 64%. So let's do 64 on 64 minus 20. In my 17 we'll be grand total of 27% or, um, go for Maxie 20.