Evaluate expression using the value given for the variable
7b - 2a, when a = -3 and b = 4

Which multiplicative property is being illustrated below? (type commutative, associative, or identity) 5 × 2 × 4 = 2 × 5 × 4

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)