Bonjour à tous J'ai besoin d'aide :Résoudre dans R les équations suivantes.
A)
(x/2x+2)+5=0
B)(10+x/x-2)-2=0
C)3/2x-4=-5
D) x+1/3-x=1

Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.

Plz hurry evaluate the expression a+b where a=8 and b=19

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?