Write the statement in the form of equation. Use k as the constant of variation. (choose 1 equation only, use small letter and no spacing)

c is directly proportional to d

Write the statement in the form of equation. Use k as the constant of variation. (choose 1 equation only, use small letter and no spacing)

w varies directly as z

Does y varies directly as x? Type YES or NO

Does y varies directly as x? Type YES or NO (use capital letter)

Does y varies directly as x? Type YES or NO (use capital letter)

Does y varies directly as x? Type YES or NO (use capital letter)

Does y varies directly as x? Type YES or NO (use capital letter)

Solve for the unknown variable:

If y varies directly as x and y = 96 when x = 4, what is the value of y when x = 30?

Solve for the unknown variable:

If a varies directly as b and a = 12 when b = 20, what is the value of b if a = 123? (no space)

Solve for the unknown variable:

If z varies directly as r and z = 243 when r = 27. What is the value of z when r = 780? (do not use comma)