Which best proves why the expressions 4(x+3)+2x and 6(x+2) must be equivalent expressions?
when x = 3, both expressions have a value of 30.
when x = 5, both expressions have a value of 42.
when x= 1, both expressions have a value of 18, and when x = 8, both expressions have a value of 60.
when x= 2, both expressions have a value of 15, and when x=6, both expressions have a value of 39.

What is the ratio of the length of an object in yards to the length of the same object in miles?

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

Igure 1 and figure 2 are two congruent parallelograms drawn on a coordinate grid as shown below: 4 quadrant coordinate grid showing two parallelograms. figure 1 has vertices at negative 5, 2 and negative 3, 4 and negative 4, 7 and negative 6, 5. figure 2 has vertices at 5, negative 2 and 7, negative 4 and 6, negative 7 and 4, negative 5. which two transformations can map figure 1 onto figure 2? reflection across the y-axis, followed by reflection across x-axis reflection across the x-axis, followed by reflection across y-axis reflection across the x-axis, followed by translation 10 units right reflection across the y-axis, followed by translation 5 units down