Kim and stacy like to make necklaces. kim has made 25 necklaces, and stacy has made t necklaces. they have made a total of 57 necklaces all together. write an equation to describe this situation

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?

Amira is told there is a trick to finding the slope within an equation in standard form,  ax+by=c.she is told she can rewrite this equation in slope-intercept form,  y=mx+b,  to find the pattern. she correctly rewrites the equation  7x+9y=14  in slope-intercept form as  y=−79x+149.which answer explains the pattern for how to find the slope using an equation in standard form? a.in slope-intercept form, the slope is  −79.these values are  a  and  b,  but with the opposite sign, so the slope of the line from the equation in standard form is  −ba.b.in slope-intercept form, the slope is  −79.these values are  a  and  b,  but with the opposite sign, so the slope of the line from the equation in standard form is  −ab.c.in slope-intercept form, the slope is  149..  these values are  c  and  a, but with the opposite sign, so the slope of the line from the equation in standard form is  −ca.d.=in slope-intercept form, the slope is  149.  these values are  c  and  b,  but with the opposite sign, so the slope of the line from the equation in standard form is  −cb.

Which equation has only one solution? ox-51 = -1 1-6 - 2x1 = 8 15x + 10 = 10 o |-6x +31 = 0