A number $k$ plus 19.5 is less than or equal to 40.

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?