There are 134 third graders and 167 fourth graders at the annual school and family picnic. the number of students is 7 times the number of adults.
each picnic table can seat 9 people. how many picnic tables will need to be set up fr the picnic? show your work
is your answer reasonable?
show or explain how to check your answer.

If the discriminant if a quadratic equation is 4 which statement describes the roots?

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x