Here are the approximate populations of three countries, expressed in scientific notation: Panama: 4 x 10°: Peru: 3.2 x 107: Thailand: 7 x 107

1. Lin says that more than 20 times as many people live in Thailand than in Panama. Is this

correct? Explain how you know.

2. Decide what power of 10 to put on the label for the rightmost tick mark of this number line so

that all three countries' populations can be distinguished.

0

100

3. Label each tick mark as a multiple of a power of 10.

4. Plot and label the three countries' populations on the number line.

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.