1 What is the total surface area of the triangular pyramid below?
7 cm
5.8 cm
A 20.3 cm2
B 60.9 cm2
C 81.2 cm2
D 121.8 cm2
1
10

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.