Answer: 14x^2-93xy+60y^2 Hope that helps!
Step-by-step explanation:
1. Expand by distributing terms
(20x-12y)(x-4y)-(3x-4y)(2x+3y)
2. Use the Foil method:(a+b)(c+d)= ac+ad+bc+bd
20x^2-80xy-12yx+48y^2-(3x-4y)(2x+3y)
3. Use the Foil method : (a+b)(c+d)= ac+ad+bc+bd
20x^2-80xy-12yx+48y^2-(6x^2+9xy-8yx-12y^2)
4. Remove parentheses 20x^2-80xy-12yx+48y^2-6x^2-9xy+ 8yx+12y^2
5. Collect like terms (20x^2-6x^2)+(-80xy-12xy-9xy+8xy)+(48y^2+12y^2)
6. Simplify.
And your answer would be 14x^2-93xy+60y^2
The first 3 rows are proportional
because when you divide the earning by car washed they all have the same unit rate of 9.5/ to answer the second part you multiply 9.5 by 88. you'll get $836
=Mr.Lehmans hourly rate for labor is 20$
=30+40=70-50=20
Answer:
6. 8.2g
7. 3800 ml
8. 560 L
9. 6300 ml
10. 30.48cm
11. 21120 ft
12. 487.48cm
Step-by-step explanation:
820 ÷ 100
3.8 × 1000
56000 ÷ 100
63 × 100
12 × 2.54
4 × 5280
16 × 30.48
Please mark me as brainliest