# algebra- Please help

posted by
**deedee**
.

10)The formula b=30a is used in New England to estimate the minimum furnace output, b, in BTU's for a modern house with a square feet of flooring.

A) determine the minimum furnace output for a 2100 ft squared modern house.

B) solve formula for a

Answer:a) 630,000

b) unsure how to calculate

24)Translate the phrase into an algebraic expression.

Justin had $36 dollars before spending d dollars on jeans. How much money remains?

The translation is $_____

Answer: how can that even be calculated? There is not enough info

25)7/(4.3)

Answer: 30.1

7)use cummutative law to find and equivalent expression

73+yz

answer: I don't even know where to start with this one

36)Simplify

32xy over 56x

Answer:? no clue