Two lines intersecting at a right angle A. Form a line
B. are parallel
C. are perpendicular
D. Form a ray

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

Twelve less than a number is at most 20