Three less than the square of the quotient of a number and five

Look for the word "Is" first - this is where your "=" goes.  (In your problem, it actually says "is equal to".)

So now you know you have = 9.

The next key word on the left is "quotient" - that means divide.  It says "quotient of a number and 5" - so we'll divide an unknown number (y in your problem) by 5.

Three less than means subtract 3 from that quotient.

So you need to start with the quotient:  y/5 - 3 = 9.

hope it helps!

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

2/3x + 7 = 29

step-by-step explanation:

two thirds = 2/3

plus a number = x

at least 29 = 29

there for you should get 2/3x + 7 = 29