Which expressions are equivalent to this expression?
y+y+y+3z

select each correct answer.

a. 2y + 2z + y + z

b. 3 + y + 3z

c. 3(y + z)

d. 3y + z

What are the domain and range of the function? f(x) = -4 (sqrt)x

Read the following two statements. then use the law of syllogism to draw a conclusion. if the tv is too loud, then it will give me a headache. if i have a headache, then i will have to rest.

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?