Hi guys, I have math questions that are hard to solve. Can anyone help?The first question:Sarah is 20 yrs older than her sis, Sarahs bro is 12 yrs younger than sarahs sisA) write an equation for this situation and her siblings relationshipB) if her bro is 1 year old find the other variableSecond question:The total number of students in the seventhgrade is 9 more than 4 times as many studentsas are in the art class. There are 101 students inthe seventh grade. Write and solve an equationto find the number of students in the art class. Let x represent the number of students in theart class. PLS HELP

what’s the question?

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

think the answer is 30 degrees. if not than it is 20 degrees. not 100% sure. let me know if it was right.

gill russ