Samantha wants to buy a chemistry book that is no more than $45. If the book she picks is originally $60 and now is discounted 30%; will the cost of the book be more or less than what she desires to spend?

The book will cost $42.

Step-by-step explanation:

30% of $60 is $18, so you'd do $60 - $18 and the total is $42.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.