1. use a commutative law to find an equivlant expression f+sr? sr+f?

2. determine which real number corresponds to the situation. The record high tempature for a date is 97.8 above zero. The cooresponding number for this sentence is 97.8?

3.Translate to an algebric expression. The sum of c and n? c+n?

1. To use the commutative law to find an equivalent expression for f+sr, we can switch the order of the two terms:

f+sr is equivalent to sr+f.

2. The corresponding real number for the sentence "The record high temperature for a date is 97.8 above zero" is 97.8.

3. The algebraic expression for "The sum of c and n" is c+n.

1. To use the commutative law to find an equivalent expression for f + sr, we can simply rearrange the terms in any order. The commutative law states that the order of addition does not change the result. So, the equivalent expression can be found by rearranging the terms to sr + f. Therefore, sr + f is an equivalent expression to f + sr.

2. To determine which real number corresponds to the situation where the record high temperature for a date is 97.8 above zero, we can simply take 97.8 itself as the corresponding number. The sentence states that the temperature is 97.8 above zero, which means it is 97.8 degrees above the zero reference point. Therefore, the corresponding number is 97.8.

3. To translate "The sum of c and n" into an algebraic expression, we can simply use the symbols for addition: +. Therefore, the algebraic expression for the sum of c and n is c + n.