Which expression is equivalent to x + x + x + 5 + 5, no matter what value is substituted in for x?

a)
3x + 5

b)
3x + 7

c)
x + 10

d)
3x + 10

What is the value of 1/3x + 7x when x = 5

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.