Susan goes shopping and has $59 in her bank account she buys a dress for $45.99 and a cardigan for $26.99 using her debit card what is her bank balance now

Plss anybody know how to do this? ? i need the answers from a through d

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?