Which of the following systems has equations that are dependent? select one: a. 2x+2y=6 2x−2y=6 b. 2x+2y=6 4x+4y=4 c. y=−x+3 y=−x−3 d. 2x+2y=6 y=−x+3

Will mark brainliest question in the pic.

The sum of two numbers is 58. the first number is 8 less than half the second number. let  c  represent the first number. let  drepresent the second number. which statements about solving for the two numbers are true? check all that apply.the equation    represents the sum of the two numbers.the equation    represents the sentence “the first number is 8 less than half the second number.”the equation    represents the relationship between the two numbers.the equation    represents the sum of the two numbers.the number  d  is 14.the number  c  is 44.the number  c  is 14.the number  d  is 44.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.