Vocabulary
The total of r and 4 is 20.
r + 4=20
The sum of a number d and 20
d+20
The difference between 26 and a number c
26-c
6 times a number m is 45
5 friends share the cost c of dinner equally. Each person pays $12.
A number x divided by 2
x/2
On a triangle all sides have the same length of e. Write the expression that represents the perimeter of the triangle.
3e
y fewer than 100 is 15.
A taxi ride costs $3 plus $2.50 per mile, m.
3+ 2.50m