Exercice 1 Je calcule A = −2 + 7 − 5 – 10 = B = −2 + 7 − (5 − 10) = C = 20 − 37 + 4²+ 6 = D = 20 – 3 × (7+4) 2 + 6 = E = -2 × (-2) × (-2) × (-2) × (-2) = F = 100 - 50 : (- 5) = G = - 20 + 5 x (- 4) - 10 x (- 2) = H = ( 5 + 3 x (5 – 20) ) : 5 = I = 6-9x(-4) / 2+1-9=

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.