JoAnn has a bank account with $350. Every week she withdraws $12.50 to attend the movies. What is the maximum number of weeks that JoAnn can withdraw the money without allowing her bank account to drop below $210

Evaluate the expression for the given value of the variable 7a - 4a for a =8

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50