The total cost for carpet (y) is proportional to the number of square feet (x) purchased. The cost per square foot is $9. Which equation could represent the total cost for 225 square feet of carpet?

A)
y =
(225)
$9

B)
y =
$9
225

C)
y = $9(225)
Eliminate

D)
y =
1
9
(225)

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Asap i need it now choose all the answers that apply. sex-linked disorders affect males more than females affect females more than males can be carried by females, without being expressed are always expressed in males are caused by genes carried on the x and y chromosomes

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?