Solve a triangle with a =5, b =6, and c= 7. Round to the nearest tenth. (Don’t answer with link, I will not open it)

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?

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?