3.4 × 42 + 6 ÷ 3 - (5.7 + 2.1) A.
35x + 23y
B.
35x + 111y
C.
93x + 23y
D.
93x + 111y

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

In the triangles, bc =de and ac fe. if the mzc is greater than the mze, then ab isdfelth