Find the coefficient of x^4 in the expansion of (2x+5)^k

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

y > 1/3x

y < = -x + 4

hope this : )

nada

step-by-step explanation:

answer: i think one of the answer is $150 and $300?

step-by-step explanation: