I'm trying to study algebra, numbers and operations of numbers, and data analysis probability statistics for a HISET exam and am having no luck finding help. I need step by step help

A customer has a 4-inch-by-6-inch picture. If
the customer wants to enlarge the photograph
so that it will come as close as possible to
fitting a sale frame, how many times larger
should the photo be?

10. A restaurant owner is planning to have a
courtyard area sodded. The sod comes in rolls
that are 3 feet long by 1 foot wide. If the
courtyard measures 60 feet by 50 feet, which
of the following expressions represents the
number of rolls of sod needed?

A new yo-yo factory is operating at 80 percent
of capacity and produces 4,000 yo-yos daily.
When the factory reaches 100 percent of
capacity, how many yo-yos should be
produced each day?
A. 800
B. 3,200
C. 4,800
D. 5,000
E. 7,200

4,000 divided by 4= 1,000 per 20% . 5 * 1,000 = 5,000

Sep 3rd, 2015

An artist knows that it costs her an average of
$40 per painting to have frames built at a
frame shop. She is taking 30 framed paintings
to an art fair. If she sells each painting for
$100, how many paintings does she need to
sell to pay for the frames?
A. 3
B. 12
C. 30
D. 40
E. 75