Answer:
D. rectangle with a width of 7 cm and a length of 8 cm
Step-by-step explanation:
If you multiply 7 and 8 you get 56, which is the least area in all of these figures.
18 = 6x + 18 -6x
18 = x + 18
0=x
Until the end of the problem, pretend the "less-than" sign is an equal sign. What you wanna do is solve for y by getting it by itself. You do this by dividing both sides by 6:
y=18
Because both sides were divided by a positive number, you do NOT flip the sign and leave it as it is:
y<18
<span>9r+7+3(8p+7r)+15
= </span><span>9r + 7 + 24p + 21r +15
= 24p + 30r + 22
hope it helps</span>