Use the diagram to find the angle measures that satisfy each case. Find each case. The measure of the first angle is 30 degrees greater then the measure of the second angle. HELP PLS

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

How can a bar model be used to solve for the unknown variable in the equation below? show your work model and then solve. 2/5n-7=9 1/4