Write the best-fit linear model for the data.The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). Find a linear function that approximates a plant's growth as a function of temperature. 
A. y = 14.6 + 0.211x
B. y = 7.30 + 0.122x
C. y = 7.30 - 0.112x
D. y = -14.6 - 0.211x
Answer: A
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Solve the problem.Suppose that 
= -4. Find 
and 
.
A. -12; 4
B. -12; - 
C. -1; -4
D. 3; 4
Use front-end rounding to round each number. Then, multiply the rounded numbers to get an estimated answer. Finally, find the exact answer.estimateexact
?
A. Estimate: 20; exact: 19.61 B. Estimate: 199; exact: 195.1 C. Estimate: 200; exact: 196.1 D. Estimate: 201; exact: 197.1
Solve the problem using matrices.Ellen wishes to mix candy worth $2.19 per pound with candy worth $7.87 per pound to form 22 pounds of a mixture worth $6.58 per pound. How many pounds of the more expensive candy should she use?
A. 7 lb B. 5 lb C. 17 lb D. 22 lb
Solve for the indicated variable.Solve q = 
for p.
A. p = 
B. p = 
C. p = 
D. p = 