67.50 + 12.50 = 80
80/100 = 0,8 x 3 = 2.4
so, the total bill was 80 + 2.4 = 82.4
<em>hope it helps :)</em>
Qiestion:
Select all that are true.
A. 6.22 - 4 = 6.28
B. 14 - 0.02 = 0.12
C. 3.31 - 2.25 = 1.06
D. 5.48 - 4.96 = 0.52
E. 41.5 - 33.25 = 29.10
Answer:
C and D are the answer
Answer:
18) 6x^2-7x-5
19) 20x^2+17x-63
20) 18x^2-20x+2
21) 5x^2+42x+16
Step-by-step explanation:
Perimeter=length×breadth
18) (3x-5)(2x+1)
=6x^2+3x-10x-5
=6x^2-7x-5
19) (4x+9)(5x-7)
=20x^2-28x+45x-63
=20x^2+17x-63
20) (18x-2)(x-1)
=18x^2-18x-2x+2
=18x^2-20x+2
21) (5x+2)(x+8)
=5x^2+40x+2x+16
=5x^2+42x+16
Answer:
pretty sure it's B, its just really hard to see
Step-by-step explanation:
