Solve each of the following multiplication and division problems. a. –8 × 6 = ? b. (–5) × (–8) × (–6) = ? c. (–3.2) × (–2.5) = ? d. 81 ÷ (–9) = ? e. (–81) ÷ (–9) = ? f. (–24) ÷ (–3) = ?

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle