Answer:
Step-by-step explanation:

70 x 100 = 7,000
Therefore, 70 hundred is equal to 7 thousands.
276 - 35d
276 = total pages
35 = pages read per day
35D = number of pages she has read during D days
Answer: 56 7/20 ft²
Step-by-step explanation: Let's transform the width and the lenght in improper fractions:
w = 5 3/4 ft, = 4*5+3/4 = 23/4 ft
l = 9 4/5 ft = 5*9+4/5 = 49/5 ft
Area = w * l
A = 23/4 * 49/5 = 1127/20 ft²
1127/20 ⇒ 56 7/20 ft²
Their mistake was doing run over rise so the correct equation should be y= -2/3x -4. I hope this helps