-5x + y = 1 - 10x + 2y = -2
plz answer right this is my last math teacher problem i have to do

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?

Which strategy is used by public health to reduce the incidence of food poisoning?