Everything is included in the picture

after solving the answer is:

2187x^14y^42

Step-by-step explanation:

We need to find (3x^2y^6)^7

We can solve this by using exponents law (a^m)^n = a^mn

(3x^2y^6)^7 = (3)^7.(x^2)^7.(y^6)^7

(3x^2y^6)^7 = 2187x^14y^42

So, after solving the answer is:

2187x^14y^42

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.