Please help! i will give brainliest and extra points if you answer correctly, thank you. (2)
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Please help! i will give brainliest and extra points if you answer correctly, thank you. (2)
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Answer:
7. 15x+25y
15(5)+25(4)
75+100
=175
8. 3.5c+4m+2.5d
3.5(10)+4(6)+2.5(12)
35+24+30
=89
9. x²-2xy+y²
(-3)²-2(-3)(2)+(2)²
9+12+4
=25
10. 5x²-4xy+3y²
5(1)²-4(1)(-4)+3(-4)²
5+16+48
=69