Posted by **deedee** on Wednesday, November 5, 2008 at 8:49am.

7) Use cummutative law to find an equivalent expression.

73+yz

Answer: 73(y+z) I know this one is wrong but I cannot figure out how to do the problem.

8) Simplify

6[5-9(3-1]

Answer: -70

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

## Answer this Question

## Related Questions

- Algebra 1 - 7)use cummutative law to find and equivalent expression 73+yz answer...
- algebra- Please help - 10)The formula b=30a is used in New England to estimate ...
- Algerbra 1 - Translate into an algerbraic expression One more than three times a...
- pre-algebra(algebra) - I'm not sure if I have the correct answer to this problem...
- Mathematics concepts - Matthew sits at his desk unable to figure out the answer ...
- math concepts - Matthew sits at his desk unable to figure out the answer to a ...
- math,correction - Simplify by combining like terms. Problem #32 radical (63) - 2...
- 8th Grade Algebra: Answer Check - Find the length of the 3rd side of each right ...
- Algebra - 1) translate to an algebraic expression: one less than a product of ...
- Algebra - 1) translate to an algebraic expression: one less than a product of ...

More Related Questions