Write an equivalent expression for b + b + b + r

b3+r

Step-by-step explanation:

3b + r

Step-by-step explanation:

Combine like terms to simplify this expression.  Note that b + b + b = 3b.

Thus, the given b + b + b + r condenses to 3b + r.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.