Find the values of x and y in the diagram.

Step-by-step explanation:

the triangle URT is an Equilateral triangle so all angles are equal to 60°

and the full triangle UTS is a right angle .

5y= 90-60= 30°

y= 6

and since the triangle RST is an Isosceles triangle

so the angle RST and RTS are equal .

in this case =30° .

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour