Rewrite the expression as an equivalent expression with fewer terms: 31-4-(5r+7

Step-by-step explanation:

Given

Required

Rewrite with fewer terms

Open Bracket

Collect Like Terms

Hence, the equivalent is 20 - 5r

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.