Perform substitution and evaluate Quiz Welcome to your Perform substitution and evaluate Quiz Please click "Next" Substitute and evaluate Given the expression 2s + 4t, evaluate for s = 1 and t = 2 10 8 9 Substitute and evaluate Given expression 2n - 3, evaluate it for x = 12 9 21 11 Substitute and evaluate Given expression x + 5, evaluate for x = 2 10 x + 7 7 Substitute and evaluate Given the expression 4m + 2m - 3m , evaluate it for m = 0 3 1 0 Substitute and evaluate Given the expression 35k - 5k + 2m, evaluate it for k = 1 and m = 15 70 60 135 Time is Up! Time's up