Help me with these two questions please

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?