Answer:
Step-by-step explanation:
Let 
represent the real numbers.
For the first part, all real numbers less than or equal to 9 in algebra is 
.
For the second part, all real numbers greater than or equal to 7 in algebra is 
.
To combine both inequalities, it would become .
Hope this helped! If not, please let me know! <3
Yep! You did it correct :)
Answer:
12
Step-by-step explanation:
13.5 + 0.5n =19.5
0.5n=19.5 - 13.5
0.5n=6
n=6/0.5
n=12
Answer:
multiplication and divisioni gusss cause area will be give amd all" × " u have to put in "÷" fiorm
Answer:
$421.10
Step-by-step explanation:
If the discount is 10%, that means the sale price is 90% of the original price.
Write the equation that represents that:
378.99 = 0.9x. Solve for x. Divide both sides by 0.9
378.99/0.9 = 421.10
That is the price before the discount and tax.
