Pls pls pls pls help!

1)

1/2 - C

1/4 - B

1/8 -D

? - A

1/2*1/4*1/8 = 1/16 of the class got an A

2) 40 lb = 840 oz

840 x* 2 1/4 = 1890 oz

Archie's dog eats 1890 oz of dog food in 2 1/4 years.

1440 ounces

Step-by-step explanation:

80 pounds+ 10=90

90 pounds to ounces is 1440 ounces

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

3, 12, 48, 384, 1536, 6144, 24576, 98304

step-by-step explanation:

just keep timing it by 4.