Work out the value of 2a + ay when a = 5 and y = - 3

What is the golden rule for solving an equation?

Sophie is eating a 50-gram chocolate bar which contains 30% of coca. How many grams of coca are in the chocolate bar?

Elise has a budget of thirty dollars to spend on back-to-school clothes. she finds some shirts she likes that cost fifteen dollars each.

True of false: 0.004 > 0.400

A motor boat takes 4 hours to travel 128 miles going upstream. The return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?

An aquarium holds 33.75 gallons of water. it has a length of 2 feet and a height of 1.5 feet. What is the volume of the aquarium?

5 1/2% of 60 equals what

The expression √7x is equivalent to the expression x√7 True or false

3 to the power of 1170

how would you rewrite this expression with parentheses to equal the given value: 5+3*2-6. you have to make it equal 10.