18 Answer:

Write the verbal phrase as an algebraic expression. Use x for the
variable in your expression: Sum of 8 and a number
19 Answer:

Write the verbal phrase as an algebraic expression. Use x for the
variable in your expression: Ten less than a number
20 Answer:

Write the verbal sentence as an equation or an inequality:
The sum of three and x is ten.
21 Answer:

Write the verbal sentence as an equation or an inequality:
Four is greater than six times a number t.
22 Answer:

Write an equation or inequality to model the situation:
The distance d to school is 1 1/2 miles more than the distance p to
the park.
23 Answer:

Write an equation or inequality to model the situation:
The perimeter of a square with a side length s is greater than or equal
to seventy plus five.