STAAR Countdown 1.2

Ethan and Bridget earn money by babysitting.

Last week, Ethan earned $102 for babysitting 12 hours.

Bridget earned$74 for babysitting 8 hours.

Which statement is true?

• A. Bridget earned more money per hour than Ethan.

• B. Ethan earned more money per hour than Bridget.

• C. Ethan earned $8.25 per hour.

• D. Bridget earned $9.50 per hour.

The table shows the grades 12 students earned

on a recent science test.

What is the range of the grades?

• 40

• 78

• 12

• 46

Tyler took 10 shots on goal during a hockey game.

Of those 10 shots, 2 resulted in a score.

What percentage of the shots on goal resulted in a score?

• 12%

• 20%

• 2%

• 25%

Determine weather each factorization is or is not

a prime factorization of 40.

Groups:

(a) Prime

,

(b) Not Prime

Farrah listed a group of decimals, fractions, and percentages in order from greatest to least.

Farrah could have created which list?

• 5/8, 65%, 0.58, 49%, 1/2, 0.45

• 65%, 5/8, 0.58, 1/2, 49%, 0.45

• 5/8, 0.58, 1/2, 0.45, 65%, 0.45

• 65%, 5/8, 0.58, 1/2, 0.45, 49%

Which statements describe the relationship between x and y in each of the data sets?

• F. Data Set I shows an additive relationship in which y is 2.5 more than x. Data Set II shows a multiplicative relationship in which y is 2 times x.

• G. Both data sets show multiplicative relationships. In Data Set I, y is 3.5 times x. In Data Set II, y is 2 times x.

• H. Data Set I shows a multiplicative relationship in which y is 3.5 times x. Data Set II shows an additive relationship in which y is 1 more than x.

• J. Both data sets show additive relationships. In Data Set I, y is 2.5 more than x. In Data Set II, y is 1 more than x.