Derek is writing a report on cell phone usage. He collects data from a random sample of seventh graders in his school, and finds that 16 out of 20 seventh graders have cell phones. If there are 290 seventh graders in his school, estimate the number of seventh graders that have cell phones.

232

Step-by-step explanation:

Use the ratio and cross multiply to find answer. 16/20=4/5 of 290 Multiply 4x290=1160 then divide by 1160÷5 =232

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315