Use a transformation to solve the equation. f*8=40

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6

Graph the following system of linear inequalities. identify at least two points in the solution: y < 5 - 2x | x + 5y > -7