If triangle PQR is similar to SQT, find the value of PQ.
X-9
S
T
8
Y +5
P
R
21
X = 15
PQ = 26

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.