Worth 30 points and will mark brainliest please help!!! A study estimated that the Correlation coefficient for the sales of winter boots and temperature increasing is r=-0.90. According to this correction coefficient, how are the sales of winter boots expected to change as the temperature increases?

A. It will decrease.

B. It will stay the same.

C. It will increase.

Which linear regression equation best fits the given points?

(1,18), (4,15), (5,11), (8,9), (10,7), (13,4), (15,0)

A. y=-5/6x-18.9

B. y=5/6x-19.2

C. y=6/5x+19.2

D. y=-6/5x+18.9

Why does physical weathering speed up the processes of chemical weathering? a) physical weathering requires abundant water, as does chemical weathering. b) physical weathering produces fresh surfaces for chemical weathering to attack. c) chemical weathering can occur only on small surfaces, not large ones. d) chemical weathering requires salt, which is provided by salt wedging.

20 brainliest for whoever answers correctly and answers all choose the statements that accurately describe china's "one child policy." china's "one child policy" began as soon as the communists came to power. the "one child policy" was meant to keep the population from reaching 700 million. the "one child policy" was meant to slow china's population growth. the "one child policy" began as a result of the country's war with japan. some people were allowed to have more than one child. the "one child policy" began in 1979. the "one child policy" was most enforced in urban areas. the "one child policy" ended at the start of 2016. china's population is current just under 1 billion people.

Which age groups shows the graestest diferrence between males and females