which equation would best solve the following problem the height of a triangle is 5 m less than its base. the area of the triangle is 42 m^2. find the length of the base. a. 42=x(x-5) b. 42=1/2(x)(x-5) c.42=x^2-5 d. 42=1/2(x^2-5)

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120