ONE QUESTION, ONE STEP
ZX-77F794D7042026年3月国际C卷 · 第 19 题
2026年3月国际C卷 · 原库模块 1 · Q19 原库参考解析
One gallon of sealant costs $17 and will cover 450 square feet of a surface. A deck has a total surface area of d square feet. Which equation represents the cost c, in dollars, of the sealant needed to cover the deck twice?
参考答案:
解题思路
容易忽略的一步
