Jin sells cookies for fundraise for her school. She sells the cookies for $1.50 per cookie. Write an expression to represent how much money she collectes if she sells "c''cookies.("c" is the variable)

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Aformual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers