This question has 3 parts answer all parts and get 100 points
grace earns $7 for each car she washes. she always saves $22 of her weekly earnings. this week, she wants to have at least $65 in spending money. how many cars must she wash? enter and solve an inequality to represent this situation. enter your value as a simplified mixed number, if necessary.

part 1.) the inequality is - ≥
part 2.) the solution to the inequality is n
part 3.) grace must wash at least cars, since n must be a whole number.

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

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