12. Text Entry Interaction
Lisa saw a scale drawing of a picture in a museum (figure A). She drew a picture that
was proportional to the painting (figure B). She used the scale 1 centimeter : 2 feet. If
Lisa's picture is 4 centimeters long, what is the length in feet of the actual painting?
1 cm:
ft

What is the number 321,000,000 in scientific notation? also what is the number? ?

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?