Use distributive property to write an expression that is equivalent to 6(10x+7y)

You can find the constant of proportionality by finding the ratio of

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax