Why do we use variables, and what is the significance of using them in expressions and equations?

Tina's mums cooked 50 dishes Vida mum cooked 20 dishes how many dishes did they cook altogether

Select the proper order from least to greatest for 1/2, 5/6 2/7, 4/2 A. 4/2, 5/6.1/2, 2/7 B. 2/7,1/2.5/6, 4/2 C. 4/2,2/7, 5/6 1/2 D. 2/7, 5/6, 1/2, 4/2

What is 5.924 rounded to the nearest hundredth

Angle a is one ninth as large as its complement angle b

Which pattern of interactionis also called the salad bowl

What is 128 divided by 8

A collector's hockey card is purchased in 1990 for $5. The value increases by 6% every year.

At a local University 54.3% of incoming first-year students have computers. If 3 students are selected at random, find the following probability. A) At least one has a computer B) None have computers

Which is more, 1 decimeter or 18 centimeters

Izzys dog is 10 1/2 years old. Car end dog is 18 months old. How many years older is Izzys dog.