Answer:
20 units
Step-by-step explanation:
The formula for the area:
A = bh × 1/2
B = 8 units
H = 5 units
8 × 5 = 40
40 × 1/2 = 20
one card takes 1/12 of an hour or 60/12=5 minutes.
she has 3/4 of an hour or 60×3/4=45 minutes
number of cards she can make =45/5=9
This can be expanded to x⁴ - 6x²
210 cm cubed
5 x 6 x 7 = 210
2z+4=12
2(4)+4=12
<em>8+4=12</em>
____________
5z*2=40
5(4)*2=40
<em>20*2=40</em>
